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aria-labelledby="doc-outline-aria-label" class="VPDocAsideOutline" data-v-cb998dce data-v-f610f197><div class="content" data-v-f610f197><div class="outline-marker" data-v-f610f197></div><div aria-level="2" class="outline-title" id="doc-outline-aria-label" role="heading" data-v-f610f197>On this page</div><ul class="VPDocOutlineItem root" data-v-f610f197 data-v-53c99d69><!--[--><!--]--></ul></div></nav><!--[--><!--]--><div class="spacer" data-v-cb998dce></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-e6f2a212><div class="content-container" data-v-e6f2a212><!--[--><!--]--><main class="main" data-v-e6f2a212><div style="position:relative;" class="vp-doc _rules" data-v-e6f2a212><div><h1 id="rules" tabindex="-1">Rules <a class="header-anchor" href="#rules" aria-label="Permalink to "Rules""></a></h1><p>In this section, you can find the truth tables for all validation rules.</p><div class="tip custom-block"><p class="custom-block-title">TIP</p><p>You can learn more about the <a href="/terminology.html#rule">Rule Terminology</a>.</p></div><div class="warning custom-block"><p class="custom-block-title">WARNING</p><p>Each rule function should validate only one thing. For example, the <code>email</code> validation <strong>should NOT</strong> check if the data is provided. Otherwise, a rule function can not check the optional data.</p><p>That's why <code>null</code> and <code>undefined</code> values are acceptable for all rules except the <code>required</code>.</p><p>If you want to check if the data is provided and is a valid email, you should use two rules (<code>required</code>, <code>email</code>) at the same time.</p></div><h2 id="accepted" tabindex="-1"><code>accepted</code> <a class="header-anchor" href="#accepted" aria-label="Permalink to "`accepted`""></a></h2><p>The field under validation must be <code>yes</code>, <code>on</code>, <code>1</code> or <code>true</code>. This is useful for validating "Terms of Service" acceptance.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-nVzem" id="tab-WmbJPRs" checked><label data-title="Declarative" for="tab-WmbJPRs">Declarative</label><input type="radio" name="group-nVzem" id="tab-tE-U59Z"><label data-title="Function-based" for="tab-tE-U59Z">Function-based</label><input type="radio" name="group-nVzem" id="tab-zp5Kw6h"><label data-title="Direct usage" for="tab-zp5Kw6h">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { terms: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"accepted"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, accepted } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { terms: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">accepted</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isAccepted } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isAccepted</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-value"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>accepted</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>accepted</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>accepted</code></td><td><code>'yes'</code></td><td>🟢</td></tr><tr><td><code>accepted</code></td><td><code>'on'</code></td><td>🟢</td></tr><tr><td><code>accepted</code></td><td><code>1</code></td><td>🟢</td></tr><tr><td><code>accepted</code></td><td><code>true</code></td><td>🟢</td></tr><tr><td><code>accepted</code></td><td><code>john</code></td><td>🔴</td></tr><tr><td><code>accepted</code></td><td><code>3.14</code></td><td>🔴</td></tr></tbody></table><h2 id="after-date" tabindex="-1"><code>after:date</code> <a class="header-anchor" href="#after-date" aria-label="Permalink to "`after:date`""></a></h2><p>The field under validation must be after the given date.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-4h-vM" id="tab-Rp5DPqk" checked><label data-title="Declarative" for="tab-Rp5DPqk">Declarative</label><input type="radio" name="group-4h-vM" id="tab-8TkIMXP"><label data-title="Function-based" for="tab-8TkIMXP">Function-based</label><input type="radio" name="group-4h-vM" id="tab-d9dfaLF"><label data-title="Direct usage" for="tab-d9dfaLF">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { startAt: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"after:2023-01-01"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, after } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { startAt: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">after</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"2023-01-01"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isAfter } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isAfter</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-value"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"2023-01-01"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><div class="tip custom-block"><p class="custom-block-title">TIP</p><p>robust-validator library uses the <a href="https://date-fns.org" target="_blank" rel="noreferrer">date-fns</a> for the date validations.</p><p>You can check the possible date formats <a href="https://date-fns.org/v4.1.0/docs/format" target="_blank" rel="noreferrer">here</a>.</p></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th><code>startAt</code></th><th>Is valid?</th></tr></thead><tbody><tr><td><code>after:2024-01-01</code></td><td><code>null</code></td><td></td><td>🔴</td></tr><tr><td><code>after:2024-01-01</code></td><td><code>undefined</code></td><td></td><td>🔴</td></tr><tr><td><code>after:2024-01-01</code></td><td><code>2025-01-01</code></td><td></td><td>🟢</td></tr><tr><td><code>after:startAt</code></td><td><code>2025-01-01</code></td><td><code>2024-01-01</code></td><td>🟢</td></tr><tr><td><code>after:startAt</code></td><td><code>2024-01-01</code></td><td><code>2024-01-01</code></td><td>🔴</td></tr><tr><td><code>after:startAt</code></td><td><code>2024-01-01</code></td><td><code>2025-01-01</code></td><td>🔴</td></tr><tr><td><code>after:2024-01-01</code></td><td><code>2024-01-01</code></td><td></td><td>🔴</td></tr><tr><td><code>after:2024-01-01</code></td><td><code>2020-01-01</code></td><td></td><td>🔴</td></tr></tbody></table><h2 id="after-or-equal-date" tabindex="-1"><code>after_or_equal:date</code> <a class="header-anchor" href="#after-or-equal-date" aria-label="Permalink to "`after_or_equal:date`""></a></h2><p>The field unter validation must be after or equal to the given field</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-Mc3kq" id="tab-AXpspSB" checked><label data-title="Declarative" for="tab-AXpspSB">Declarative</label><input type="radio" name="group-Mc3kq" id="tab-IXIuDM8"><label data-title="Function-based" for="tab-IXIuDM8">Function-based</label><input type="radio" name="group-Mc3kq" id="tab--1tsl5c"><label data-title="Direct usage" for="tab--1tsl5c">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { startAt: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"after_or_equal:2023-01-01"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, afterOrEqual } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { startAt: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">afterOrEqual</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"2023-01-01"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isAfterOrEqual } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isAfterOrEqual</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-value"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"2023-01-01"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><div class="tip custom-block"><p class="custom-block-title">TIP</p><p>robust-validator library uses the <a href="https://date-fns.org" target="_blank" rel="noreferrer">date-fns</a> for the date validations.</p><p>You can check the possible date formats <a href="https://date-fns.org/v4.1.0/docs/format" target="_blank" rel="noreferrer">here</a>.</p></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th><code>startAt</code></th><th>Is valid?</th></tr></thead><tbody><tr><td><code>after_or_equal:2024-01-01</code></td><td><code>null</code></td><td></td><td>🔴</td></tr><tr><td><code>after_or_equal:2024-01-01</code></td><td><code>undefined</code></td><td></td><td>🔴</td></tr><tr><td><code>after_or_equal:2024-01-01</code></td><td><code>2025-01-01</code></td><td></td><td>🟢</td></tr><tr><td><code>after_or_equal:2024-01-01</code></td><td><code>2024-01-01</code></td><td></td><td>🟢</td></tr><tr><td><code>after_or_equal:startAt</code></td><td><code>2025-01-01</code></td><td><code>2024-01-01</code></td><td>🟢</td></tr><tr><td><code>after_or_equal:startAt</code></td><td><code>2024-01-01</code></td><td><code>2024-01-01</code></td><td>🟢</td></tr><tr><td><code>after_or_equal:startAt</code></td><td><code>2024-01-01</code></td><td><code>2025-01-01</code></td><td>🔴</td></tr><tr><td><code>after_or_equal:2024-01-01</code></td><td><code>2020-01-01</code></td><td></td><td>🔴</td></tr></tbody></table><h2 id="alpha" tabindex="-1"><code>alpha</code> <a class="header-anchor" href="#alpha" aria-label="Permalink to "`alpha`""></a></h2><p>The field under validation must be entirely alphabetic characters.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-cTtKC" id="tab-89bqp_R" checked><label data-title="Declarative" for="tab-89bqp_R">Declarative</label><input type="radio" name="group-cTtKC" id="tab-HbzdjLh"><label data-title="Function-based" for="tab-HbzdjLh">Function-based</label><input type="radio" name="group-cTtKC" id="tab-UAhr3tm"><label data-title="Direct usage" for="tab-UAhr3tm">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { username: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"alpha"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, alpha } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { username: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">alpha</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isAlpha } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isAlpha</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-value"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>alpha</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>alpha</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>alpha</code></td><td><code>john</code></td><td>🟢</td></tr><tr><td><code>alpha</code></td><td><code>john123</code></td><td>🔴</td></tr><tr><td><code>alpha</code></td><td><code>john-doe</code></td><td>🔴</td></tr><tr><td><code>alpha</code></td><td><code>123</code></td><td>🔴</td></tr><tr><td><code>alpha</code></td><td><code>3.14</code></td><td>🔴</td></tr><tr><td><code>alpha</code></td><td><code>true</code></td><td>🔴</td></tr></tbody></table><h2 id="alpha-dash" tabindex="-1"><code>alpha_dash</code> <a class="header-anchor" href="#alpha-dash" aria-label="Permalink to "`alpha_dash`""></a></h2><p>The field under validation may have alpha-numeric characters, as well as dashes and underscores.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-lRD4_" id="tab-f2OALYY" checked><label data-title="Declarative" for="tab-f2OALYY">Declarative</label><input type="radio" name="group-lRD4_" id="tab-TmDVkHL"><label data-title="Function-based" for="tab-TmDVkHL">Function-based</label><input type="radio" name="group-lRD4_" id="tab-vLnebh3"><label data-title="Direct usage" for="tab-vLnebh3">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { username: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"alpha_dash"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, alphaDash } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { username: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">alphaDash</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isAlphaDash } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isAlphaDash</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-value"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>alpha_dash</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>alpha_dash</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>alpha_dash</code></td><td><code>john</code></td><td>🟢</td></tr><tr><td><code>alpha_dash</code></td><td><code>john-doe</code></td><td>🟢</td></tr><tr><td><code>alpha_dash</code></td><td><code>john_doe</code></td><td>🟢</td></tr><tr><td><code>alpha_dash</code></td><td><code>john123</code></td><td>🔴</td></tr><tr><td><code>alpha_dash</code></td><td><code>123</code></td><td>🔴</td></tr><tr><td><code>alpha_dash</code></td><td><code>3.14</code></td><td>🔴</td></tr><tr><td><code>alpha_dash</code></td><td><code>true</code></td><td>🔴</td></tr></tbody></table><h2 id="alpha-num" tabindex="-1"><code>alpha_num</code> <a class="header-anchor" href="#alpha-num" aria-label="Permalink to "`alpha_num`""></a></h2><p>The field under validation must be entirely alpha-numeric characters.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-R4uV3" id="tab-R_45TNW" checked><label data-title="Declarative" for="tab-R_45TNW">Declarative</label><input type="radio" name="group-R4uV3" id="tab-hIsW689"><label data-title="Function-based" for="tab-hIsW689">Function-based</label><input type="radio" name="group-R4uV3" id="tab-Tktnq9i"><label data-title="Direct usage" for="tab-Tktnq9i">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { username: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"alpha_num"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, alphaNum } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { username: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">alphaNum</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isAlphaNum } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isAlphaNum</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-value"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>alpha_num</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>alpha_num</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>alpha_num</code></td><td><code>john</code></td><td>🟢</td></tr><tr><td><code>alpha_num</code></td><td><code>john123</code></td><td>🟢</td></tr><tr><td><code>alpha_num</code></td><td><code>john-doe</code></td><td>🔴</td></tr><tr><td><code>alpha_num</code></td><td><code>john_doe</code></td><td>🔴</td></tr><tr><td><code>alpha_num</code></td><td><code>123</code></td><td>🔴</td></tr><tr><td><code>alpha_num</code></td><td><code>3.14</code></td><td>🔴</td></tr><tr><td><code>alpha_num</code></td><td><code>true</code></td><td>🔴</td></tr></tbody></table><h2 id="array" tabindex="-1"><code>array</code> <a class="header-anchor" href="#array" aria-label="Permalink to "`array`""></a></h2><p>The field under validation must be an array.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-d2AUu" id="tab-qGyU81R" checked><label data-title="Declarative" for="tab-qGyU81R">Declarative</label><input type="radio" name="group-d2AUu" id="tab-fXfLDWG"><label data-title="Function-based" for="tab-fXfLDWG">Function-based</label><input type="radio" name="group-d2AUu" id="tab-UtIMDj8"><label data-title="Direct usage" for="tab-UtIMDj8">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { selectedIds: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"array"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, array } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { selectedIds: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">array</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isArray } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isArray</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">([</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">2</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">3</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">]);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>array</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>array</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>array</code></td><td><code>[]</code></td><td>🟢</td></tr><tr><td><code>array</code></td><td><code>[1, 2, 3]</code></td><td>🟢</td></tr><tr><td><code>array</code></td><td><code>[{"id": 1}]</code></td><td>🟢</td></tr><tr><td><code>array</code></td><td><code>john</code></td><td>🔴</td></tr><tr><td><code>array</code></td><td><code>john</code></td><td>🔴</td></tr><tr><td><code>array</code></td><td><code>123</code></td><td>🔴</td></tr><tr><td><code>array</code></td><td><code>3.14</code></td><td>🔴</td></tr><tr><td><code>array</code></td><td><code>true</code></td><td>🔴</td></tr></tbody></table><h2 id="before-date" tabindex="-1"><code>before:date</code> <a class="header-anchor" href="#before-date" aria-label="Permalink to "`before:date`""></a></h2><p>The field under validation must be before the given date.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-zn0XN" id="tab-bGw6YEn" checked><label data-title="Declarative" for="tab-bGw6YEn">Declarative</label><input type="radio" name="group-zn0XN" id="tab-J6rvNCr"><label data-title="Function-based" for="tab-J6rvNCr">Function-based</label><input type="radio" name="group-zn0XN" id="tab-ZBuLEgm"><label data-title="Direct usage" for="tab-ZBuLEgm">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { startAt: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"before:2023-01-01"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, before } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { startAt: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">before</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"2023-01-01"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isBefore } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isBefore</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-value"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"2023-01-01"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><div class="tip custom-block"><p class="custom-block-title">TIP</p><p>robust-validator library uses the <a href="https://date-fns.org" target="_blank" rel="noreferrer">date-fns</a> for the date validations.</p><p>You can check the possible date formats <a href="https://date-fns.org/v4.1.0/docs/format" target="_blank" rel="noreferrer">here</a>.</p></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th><code>finishAt</code></th><th>Is valid?</th></tr></thead><tbody><tr><td><code>before:2024-01-01</code></td><td><code>null</code></td><td></td><td>🔴</td></tr><tr><td><code>before:2024-01-01</code></td><td><code>undefined</code></td><td></td><td>🔴</td></tr><tr><td><code>before:2024-01-01</code></td><td><code>2023-01-01</code></td><td></td><td>🟢</td></tr><tr><td><code>before:finishAt</code></td><td><code>2023-01-01</code></td><td><code>2024-01-01</code></td><td>🟢</td></tr><tr><td><code>before:finishAt</code></td><td><code>2023-01-01</code></td><td><code>2023-01-01</code></td><td>🔴</td></tr><tr><td><code>before:finishAt</code></td><td><code>2023-01-01</code></td><td><code>2022-01-01</code></td><td>🔴</td></tr><tr><td><code>before:2024-01-01</code></td><td><code>2024-01-01</code></td><td></td><td>🔴</td></tr><tr><td><code>before:2024-01-01</code></td><td><code>2025-01-01</code></td><td></td><td>🔴</td></tr></tbody></table><h2 id="before-or-equal-date" tabindex="-1"><code>before_or_equal:date</code> <a class="header-anchor" href="#before-or-equal-date" aria-label="Permalink to "`before_or_equal:date`""></a></h2><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-vX3JH" id="tab-GFbCZVp" checked><label data-title="Declarative" for="tab-GFbCZVp">Declarative</label><input type="radio" name="group-vX3JH" id="tab-g1Hp6bq"><label data-title="Function-based" for="tab-g1Hp6bq">Function-based</label><input type="radio" name="group-vX3JH" id="tab-2uF2dqk"><label data-title="Direct usage" for="tab-2uF2dqk">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { startAt: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"before_or_equal:2023-01-01"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, beforeOrEqual } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { startAt: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">beforeOrEqual</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"2023-01-01"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isBeforeOrEqual } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isBeforeOrEqual</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-value"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"2023-01-01"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><p>The field under validation must be before or equal to the given date.</p><div class="tip custom-block"><p class="custom-block-title">TIP</p><p>robust-validator library uses the <a href="https://date-fns.org" target="_blank" rel="noreferrer">date-fns</a> for the date validations.</p><p>You can check the possible date formats <a href="https://date-fns.org/v4.1.0/docs/format" target="_blank" rel="noreferrer">here</a>.</p></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th><code>finishAt</code></th><th>Is valid?</th></tr></thead><tbody><tr><td><code>before_or_equal:2024-01-01</code></td><td><code>null</code></td><td></td><td>🔴</td></tr><tr><td><code>before_or_equal:2024-01-01</code></td><td><code>undefined</code></td><td></td><td>🔴</td></tr><tr><td><code>before_or_equal:2024-01-01</code></td><td><code>2023-01-01</code></td><td></td><td>🟢</td></tr><tr><td><code>before_or_equal:2024-01-01</code></td><td><code>2024-01-01</code></td><td></td><td>🟢</td></tr><tr><td><code>before_or_equal:finishAt</code></td><td><code>2023-01-01</code></td><td><code>2024-01-01</code></td><td>🟢</td></tr><tr><td><code>before_or_equal:finishAt</code></td><td><code>2023-01-01</code></td><td><code>2023-01-01</code></td><td>🟢</td></tr><tr><td><code>before_or_equal:finishAt</code></td><td><code>2023-01-01</code></td><td><code>2022-01-01</code></td><td>🔴</td></tr><tr><td><code>before_or_equal:2024-01-01</code></td><td><code>2025-01-01</code></td><td></td><td>🔴</td></tr></tbody></table><h2 id="between-min-max" tabindex="-1"><code>between:min,max</code> <a class="header-anchor" href="#between-min-max" aria-label="Permalink to "`between:min,max`""></a></h2><p>The field under validation must have a size between the given min and max. Strings, and numerics are evaluated in the same fashion as the size rule.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-NNmfZ" id="tab-X07yFCF" checked><label data-title="Declarative" for="tab-X07yFCF">Declarative</label><input type="radio" name="group-NNmfZ" id="tab-SYSA-cW"><label data-title="Function-based" for="tab-SYSA-cW">Function-based</label><input type="radio" name="group-NNmfZ" id="tab-INUqR3v"><label data-title="Direct usage" for="tab-INUqR3v">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { score: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"between:1,10"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, score } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { score: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">score</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">10</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isBetween } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isBetween</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">3</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">1</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">10</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>between:1,5</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>between:1,5</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>between:1,5</code></td><td><code>'john'</code></td><td>🟢</td></tr><tr><td><code>between:1,5</code></td><td><code>'12345'</code></td><td>🟢</td></tr><tr><td><code>between:1,5</code></td><td><code>long-text</code></td><td>🔴</td></tr><tr><td><code>between:1,5</code></td><td><code>12345</code></td><td>🔴</td></tr></tbody></table><h2 id="boolean" tabindex="-1"><code>boolean</code> <a class="header-anchor" href="#boolean" aria-label="Permalink to "`boolean`""></a></h2><p>The field under validation must be a boolean value of the form true, false, 0, 1, 'true', 'false', '0', '1',</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-0c3yF" id="tab-rDO3koK" checked><label data-title="Declarative" for="tab-rDO3koK">Declarative</label><input type="radio" name="group-0c3yF" id="tab-xkWB2Gs"><label data-title="Function-based" for="tab-xkWB2Gs">Function-based</label><input type="radio" name="group-0c3yF" id="tab-wifvCf6"><label data-title="Direct usage" for="tab-wifvCf6">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { isOpen: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"boolean"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, boolean } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { isOpen: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">boolean</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isBoolean } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isBoolean</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">true</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>boolean</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>boolean</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>boolean</code></td><td><code>true</code></td><td>🟢</td></tr><tr><td><code>boolean</code></td><td><code>'true'</code></td><td>🟢</td></tr><tr><td><code>boolean</code></td><td><code>1</code></td><td>🟢</td></tr><tr><td><code>boolean</code></td><td><code>'1'</code></td><td>🟢</td></tr><tr><td><code>boolean</code></td><td><code>false</code></td><td>🔴</td></tr><tr><td><code>boolean</code></td><td><code>'false'</code></td><td>🔴</td></tr><tr><td><code>boolean</code></td><td><code>0</code></td><td>🔴</td></tr><tr><td><code>boolean</code></td><td><code>'0'</code></td><td>🔴</td></tr></tbody></table><h2 id="confirmed" tabindex="-1"><code>confirmed</code> <a class="header-anchor" href="#confirmed" aria-label="Permalink to "`confirmed`""></a></h2><p>The field under validation must have a matching field of <code>foo_confirmed</code>. For example, if the field under validation is <code>password</code>, a matching <code>password_confirmed</code> field must be present in the input.</p><p>Let's assume that the value of the <code>password</code> field is <code>123456</code>. If you use the <code>confirmed</code> definition on the <code>password</code> field's rules, the truth table would look like the following example:</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-YWVLM" id="tab-5YvsYUq" checked><label data-title="Declarative" for="tab-5YvsYUq">Declarative</label><input type="radio" name="group-YWVLM" id="tab-n5T8qih"><label data-title="Function-based" for="tab-n5T8qih">Function-based</label><input type="radio" name="group-YWVLM" id="tab-jP8FnI2"><label data-title="Direct usage" for="tab-jP8FnI2">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { password: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"confirmed"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, confirmed } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { password: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">confirmed</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isConfirmed } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isConfirmed</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-data"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Field</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>password_confirmed</code></td><td><code>123456</code></td><td>🟢</td></tr><tr><td><code>password_confirmed</code></td><td><code>654321</code></td><td>🔴</td></tr><tr><td><code>password_confirmed</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>password_confirmed</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>password_confirmed</code></td><td><code>true</code></td><td>🔴</td></tr><tr><td><code>password_confirmed</code></td><td><code>false</code></td><td>🔴</td></tr><tr><td><code>password_confirmed</code></td><td><code>{}</code></td><td>🔴</td></tr></tbody></table><h2 id="date-format" tabindex="-1"><code>date:format</code> <a class="header-anchor" href="#date-format" aria-label="Permalink to "`date:format`""></a></h2><p>The field under validation must be a valid date format which is acceptable by Javascript's Date object.</p><div class="tip custom-block"><p class="custom-block-title">TIP</p><p>robust-validator library uses the <a href="https://date-fns.org" target="_blank" rel="noreferrer">date-fns</a> for the date validations.</p><p>You can check the possible date formats <a href="https://date-fns.org/v4.1.0/docs/format" target="_blank" rel="noreferrer">here</a>.</p></div><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-GFZh_" id="tab-az7quJ8" checked><label data-title="Declarative" for="tab-az7quJ8">Declarative</label><input type="radio" name="group-GFZh_" id="tab--cV-Zw_"><label data-title="Function-based" for="tab--cV-Zw_">Function-based</label><input type="radio" name="group-GFZh_" id="tab-cyV-jPB"><label data-title="Direct usage" for="tab-cyV-jPB">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { startAt: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"date:yyyy-MM-dd"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, date } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { startAt: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">date</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"yyyy-MM-dd"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isDate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isDate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-data"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"yyyy-MM-dd"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>date:yyyy-MM-dd</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>date:yyyy-MM-dd</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>date:yyyy-MM-dd</code></td><td><code>2023-12-16</code></td><td>🟢</td></tr><tr><td><code>date:yyyy-MM-dd</code></td><td><code>2023-01-01</code></td><td>🟢</td></tr><tr><td><code>date:yyyy-MM-dd</code></td><td><code>December 16, 2023 12:00:00</code></td><td>🔴</td></tr><tr><td><code>date:yyyy-MM-dd</code></td><td><code>2022-13-01</code></td><td>🔴</td></tr><tr><td><code>date:yyyy-MM-dd</code></td><td><code>2022-12-32</code></td><td>🔴</td></tr><tr><td><code>date:yyyy-MM-dd</code></td><td><code>2022-02-29</code></td><td>🔴</td></tr><tr><td><code>date:yyyy-MM-dd</code></td><td><code>false</code></td><td>🔴</td></tr></tbody></table><h2 id="digits-value" tabindex="-1"><code>digits:value</code> <a class="header-anchor" href="#digits-value" aria-label="Permalink to "`digits:value`""></a></h2><p>The field under validation must be numeric and must have an exact length of value.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-cqNQE" id="tab-0Uprf2w" checked><label data-title="Declarative" for="tab-0Uprf2w">Declarative</label><input type="radio" name="group-cqNQE" id="tab-iCyDzQF"><label data-title="Function-based" for="tab-iCyDzQF">Function-based</label><input type="radio" name="group-cqNQE" id="tab-1wWTE6Z"><label data-title="Direct usage" for="tab-1wWTE6Z">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { pin: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"digits:4"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, digits } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { pin: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">digits</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">4</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isDigits } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isDigits</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"1234"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">4</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>digits:4</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>digits:4</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>digits:4</code></td><td><code>1234</code></td><td>🟢</td></tr><tr><td><code>digits:4</code></td><td><code>123</code></td><td>🔴</td></tr><tr><td><code>digits:4</code></td><td><code>true</code></td><td>🔴</td></tr><tr><td><code>digits:4</code></td><td><code>'1234'</code></td><td>🔴</td></tr><tr><td><code>digits:4</code></td><td><code>123456</code></td><td>🔴</td></tr></tbody></table><h2 id="digits-between-min-max" tabindex="-1"><code>digits_between:min,max</code> <a class="header-anchor" href="#digits-between-min-max" aria-label="Permalink to "`digits_between:min,max`""></a></h2><p>The field under validation must be numeric and must have length between given min and max.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-ZRzq9" id="tab-G6LZ_Jj" checked><label data-title="Declarative" for="tab-G6LZ_Jj">Declarative</label><input type="radio" name="group-ZRzq9" id="tab-5ha3svK"><label data-title="Function-based" for="tab-5ha3svK">Function-based</label><input type="radio" name="group-ZRzq9" id="tab-bKe1X13"><label data-title="Direct usage" for="tab-bKe1X13">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { pin: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"digits_between:4,6"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, digitsBetween } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { pin: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">digitsBetween</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">4</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">6</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isdigitsBetween } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isdigitsBetween</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"1234"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">4</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">6</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>digits_between:4,6</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>digits_between:4,6</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>digits_between:4,6</code></td><td><code>1234</code></td><td>🟢</td></tr><tr><td><code>digits_between:4,6</code></td><td><code>123456</code></td><td>🟢</td></tr><tr><td><code>digits_between:4,6</code></td><td><code>123</code></td><td>🔴</td></tr><tr><td><code>digits_between:4,6</code></td><td><code>true</code></td><td>🔴</td></tr><tr><td><code>digits_between:4,6</code></td><td><code>'1234'</code></td><td>🔴</td></tr></tbody></table><h2 id="email" tabindex="-1"><code>email</code> <a class="header-anchor" href="#email" aria-label="Permalink to "`email`""></a></h2><p>The field under validation must be formatted as an e-mail address.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-rO6x_" id="tab-NbHZGXX" checked><label data-title="Declarative" for="tab-NbHZGXX">Declarative</label><input type="radio" name="group-rO6x_" id="tab-cOr5bhh"><label data-title="Function-based" for="tab-cOr5bhh">Function-based</label><input type="radio" name="group-rO6x_" id="tab-qYZCtsq"><label data-title="Direct usage" for="tab-qYZCtsq">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { contact_email: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"email"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, email } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { contact_email: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">email</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isEmail } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isEmail</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-date"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>email</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>email</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>email</code></td><td><code>foo@bar.com</code></td><td>🟢</td></tr><tr><td><code>email</code></td><td><code>just a text</code></td><td>🔴</td></tr><tr><td><code>email</code></td><td><code>true</code></td><td>🔴</td></tr><tr><td><code>email</code></td><td><code>'1234'</code></td><td>🔴</td></tr></tbody></table><h2 id="hex" tabindex="-1"><code>hex</code> <a class="header-anchor" href="#hex" aria-label="Permalink to "`hex`""></a></h2><p>The field under validation should be a hexadecimal format.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-WPIS1" id="tab-3dV-06v" checked><label data-title="Declarative" for="tab-3dV-06v">Declarative</label><input type="radio" name="group-WPIS1" id="tab-YHPOkpk"><label data-title="Function-based" for="tab-YHPOkpk">Function-based</label><input type="radio" name="group-WPIS1" id="tab-sEnDrL9"><label data-title="Direct usage" for="tab-sEnDrL9">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { colorCode: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"hex"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, hex } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { colorCode: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">hex</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isHex } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isHex</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"f1f1f1"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>hex</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>hex</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>hex</code></td><td><code>1aF</code></td><td>🟢</td></tr><tr><td><code>hex</code></td><td><code>1234567890ABCDEF</code></td><td>🟢</td></tr><tr><td><code>hex</code></td><td><code>123xyz</code></td><td>🔴</td></tr><tr><td><code>hex</code></td><td><code>0xg</code></td><td>🔴</td></tr><tr><td><code>hex</code></td><td><code>invalid string</code></td><td>🔴</td></tr></tbody></table><h2 id="includes-foo-bar" tabindex="-1"><code>includes:foo,bar,...</code> <a class="header-anchor" href="#includes-foo-bar" aria-label="Permalink to "`includes:foo,bar,...`""></a></h2><p>The field under validation must be included in the given list of values.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-GIM9x" id="tab-qBhpjrG" checked><label data-title="Declarative" for="tab-qBhpjrG">Declarative</label><input type="radio" name="group-GIM9x" id="tab-bAWY-ct"><label data-title="Function-based" for="tab-bAWY-ct">Function-based</label><input type="radio" name="group-GIM9x" id="tab-Shj1wwK"><label data-title="Direct usage" for="tab-Shj1wwK">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { userChoice: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"includes:news,marketing"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, includes } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { userChoice: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">includes</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">([</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"news"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"marketing"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">])] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isIncludes } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isIncludes</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-data"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"news,marketing"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// or</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isIncludes</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-data"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, [</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"news"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"marketing"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">]);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>includes:A,B</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>includes:A,B</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>includes:A,B</code></td><td><code>A</code></td><td>🟢</td></tr><tr><td><code>includes:A,B</code></td><td><code>B</code></td><td>🟢</td></tr><tr><td><code>includes:A,B</code></td><td><code>C</code></td><td>🔴</td></tr><tr><td><code>includes:A,B</code></td><td><code>true</code></td><td>🔴</td></tr><tr><td><code>includes:A,B</code></td><td><code>{}</code></td><td>🔴</td></tr></tbody></table><h2 id="integer" tabindex="-1"><code>integer</code> <a class="header-anchor" href="#integer" aria-label="Permalink to "`integer`""></a></h2><p>The field under validation must have an integer value.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-L_CCh" id="tab-kaPA6Vb" checked><label data-title="Declarative" for="tab-kaPA6Vb">Declarative</label><input type="radio" name="group-L_CCh" id="tab-IFMbVQZ"><label data-title="Function-based" for="tab-IFMbVQZ">Function-based</label><input type="radio" name="group-L_CCh" id="tab-cu78ChU"><label data-title="Direct usage" for="tab-cu78ChU">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { age: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"integer"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, integer } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { age: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">integer</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isInteger } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isInteger</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">134</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>integer</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>integer</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>integer</code></td><td><code>123</code></td><td>🟢</td></tr><tr><td><code>integer</code></td><td><code>3.14</code></td><td>🔴</td></tr><tr><td><code>integer</code></td><td><code>abc</code></td><td>🔴</td></tr></tbody></table><h2 id="max-value" tabindex="-1"><code>max:value</code> <a class="header-anchor" href="#max-value" aria-label="Permalink to "`max:value`""></a></h2><p>Validate that an attribute is no greater than a given size</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-wa9TP" id="tab-vtmL54v" checked><label data-title="Declarative" for="tab-vtmL54v">Declarative</label><input type="radio" name="group-wa9TP" id="tab-duVnkXW"><label data-title="Function-based" for="tab-duVnkXW">Function-based</label><input type="radio" name="group-wa9TP" id="tab-N5bOwec"><label data-title="Direct usage" for="tab-N5bOwec">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { age: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"max:99"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, max } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { age: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">max</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">99</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isMax } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isMax</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">10</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">99</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>max:5</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>max:5</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>max:5</code></td><td><code>'123'</code></td><td>🟢</td></tr><tr><td><code>max:5</code></td><td><code>3</code></td><td>🟢</td></tr><tr><td><code>max:5</code></td><td><code>'abcdef'</code></td><td>🔴</td></tr><tr><td><code>max:5</code></td><td><code>10</code></td><td>🔴</td></tr></tbody></table><h2 id="min-value" tabindex="-1"><code>min:value</code> <a class="header-anchor" href="#min-value" aria-label="Permalink to "`min:value`""></a></h2><p>Validate that an attribute is at least a given size.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-aT-Oe" id="tab-mVRv_o-" checked><label data-title="Declarative" for="tab-mVRv_o-">Declarative</label><input type="radio" name="group-aT-Oe" id="tab-7mX_zZy"><label data-title="Function-based" for="tab-7mX_zZy">Function-based</label><input type="radio" name="group-aT-Oe" id="tab-d9gB-2b"><label data-title="Direct usage" for="tab-d9gB-2b">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { age: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"min:22"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, min } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { age: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">min</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">22</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isMin } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isMin</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">10</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">22</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>min:5</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>min:5</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>min:5</code></td><td><code>'abcdef'</code></td><td>🟢</td></tr><tr><td><code>min:5</code></td><td><code>'123456'</code></td><td>🟢</td></tr><tr><td><code>min:5</code></td><td><code>10</code></td><td>🟢</td></tr><tr><td><code>min:5</code></td><td><code>'abcdef'</code></td><td>🔴</td></tr><tr><td><code>min:5</code></td><td><code>2</code></td><td>🔴</td></tr></tbody></table><h2 id="not-includes-foo-bar" tabindex="-1"><code>not_includes:foo,bar,...</code> <a class="header-anchor" href="#not-includes-foo-bar" aria-label="Permalink to "`not_includes:foo,bar,...`""></a></h2><p>The field under validation must not be included in the given list of values.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-RuJLU" id="tab-zfXwfYq" checked><label data-title="Declarative" for="tab-zfXwfYq">Declarative</label><input type="radio" name="group-RuJLU" id="tab-1ZXGw3b"><label data-title="Function-based" for="tab-1ZXGw3b">Function-based</label><input type="radio" name="group-RuJLU" id="tab-ONQxSf1"><label data-title="Direct usage" for="tab-ONQxSf1">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { userChoice: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"not_includes:news,marketing"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, notIncludes } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { userChoice: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">notIncludes</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">([</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"news"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"marketing"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">])] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isNotIncludes } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isNotIncludes</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-data"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"news,marketing"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// or</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isNotIncludes</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-data"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, [</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"news"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"marketing"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">]);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>not_includes:A,B</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>not_includes:A,B</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>not_includes:A,B</code></td><td><code>C</code></td><td>🟢</td></tr><tr><td><code>not_includes:A,B</code></td><td><code>A</code></td><td>🔴</td></tr><tr><td><code>not_includes:A,B</code></td><td><code>B</code></td><td>🔴</td></tr><tr><td><code>not_includes:A,B</code></td><td><code>true</code></td><td>🔴</td></tr></tbody></table><h2 id="numeric" tabindex="-1"><code>numeric</code> <a class="header-anchor" href="#numeric" aria-label="Permalink to "`numeric`""></a></h2><p>Validate that an attribute is numeric.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-UDPMy" id="tab-o8DP_hI" checked><label data-title="Declarative" for="tab-o8DP_hI">Declarative</label><input type="radio" name="group-UDPMy" id="tab-HrnIpGG"><label data-title="Function-based" for="tab-HrnIpGG">Function-based</label><input type="radio" name="group-UDPMy" id="tab-YyXFizI"><label data-title="Direct usage" for="tab-YyXFizI">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { salary: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"numeric"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, numeric } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { salary: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">numeric</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isNumeric } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isNumeric</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">3000</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>integer</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>integer</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>integer</code></td><td><code>123</code></td><td>🟢</td></tr><tr><td><code>integer</code></td><td><code>3.14</code></td><td>🟢</td></tr><tr><td><code>integer</code></td><td><code>abc</code></td><td>🔴</td></tr></tbody></table><h2 id="required" tabindex="-1"><code>required</code> <a class="header-anchor" href="#required" aria-label="Permalink to "`required`""></a></h2><p>Checks if the value is provided.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-0ubXl" id="tab-rs1S1jr" checked><label data-title="Declarative" for="tab-rs1S1jr">Declarative</label><input type="radio" name="group-0ubXl" id="tab-p2GtnGH"><label data-title="Function-based" for="tab-p2GtnGH">Function-based</label><input type="radio" name="group-0ubXl" id="tab-rz6iN2G"><label data-title="Direct usage" for="tab-rz6iN2G">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { salary: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"required"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, required } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { salary: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">required</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isRequired } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isRequired</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-data"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>required</code></td><td><code>john</code></td><td>🟢</td></tr><tr><td><code>required</code></td><td><code>123</code></td><td>🟢</td></tr><tr><td><code>required</code></td><td><code>1.23</code></td><td>🟢</td></tr><tr><td><code>required</code></td><td><code>{}</code></td><td>🟢</td></tr><tr><td><code>required</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>required</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>required</code></td><td><code>''</code></td><td>🔴</td></tr><tr><td><code>required</code></td><td><code>' '</code></td><td>🔴</td></tr></tbody></table><h2 id="size-value" tabindex="-1"><code>size:value</code> <a class="header-anchor" href="#size-value" aria-label="Permalink to "`size:value`""></a></h2><p>The field under validation must have a size matching the given value. For string data, value corresponds to the number of characters. For numeric data, value corresponds to a given integer value.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-6DLo6" id="tab-YqKH_ao" checked><label data-title="Declarative" for="tab-YqKH_ao">Declarative</label><input type="radio" name="group-6DLo6" id="tab-2ZSK6Wo"><label data-title="Function-based" for="tab-2ZSK6Wo">Function-based</label><input type="radio" name="group-6DLo6" id="tab-um5Nu_D"><label data-title="Direct usage" for="tab-um5Nu_D">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { password: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"size:12"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, size } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { password: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">size</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">12</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">)] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isSize } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isSize</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-data"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">, </span><span style="--shiki-light:#005CC5;--shiki-dark:#79B8FF;">12</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>size:3</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>size:3</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>size:3</code></td><td><code>abc</code></td><td>🟢</td></tr><tr><td><code>size:3</code></td><td><code>1</code></td><td>🟢</td></tr><tr><td><code>size:3</code></td><td><code>1.23</code></td><td>🟢</td></tr><tr><td><code>size:3</code></td><td><code>abcde</code></td><td>🔴</td></tr><tr><td><code>size:3</code></td><td><code>10</code></td><td>🔴</td></tr></tbody></table><h2 id="string" tabindex="-1"><code>string</code> <a class="header-anchor" href="#string" aria-label="Permalink to "`string`""></a></h2><p>The field under validation must be a string.</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-ah05J" id="tab-v5i3elq" checked><label data-title="Declarative" for="tab-v5i3elq">Declarative</label><input type="radio" name="group-ah05J" id="tab--6chB_N"><label data-title="Function-based" for="tab--6chB_N">Function-based</label><input type="radio" name="group-ah05J" id="tab-ukM_uBn"><label data-title="Direct usage" for="tab-ukM_uBn">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { content: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"string"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, string } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { content: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">string</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isString } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isString</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"your-data"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>string</code></td><td><code>abc</code></td><td>🟢</td></tr><tr><td><code>string</code></td><td><code>''</code></td><td>🟢</td></tr><tr><td><code>string</code></td><td><code>' '</code></td><td>🟢</td></tr><tr><td><code>string</code></td><td><code>1</code></td><td>🔴</td></tr><tr><td><code>string</code></td><td><code>1.23</code></td><td>🔴</td></tr><tr><td><code>string</code></td><td><code>abcde</code></td><td>🔴</td></tr><tr><td><code>string</code></td><td><code>10</code></td><td>🔴</td></tr><tr><td><code>string</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>string</code></td><td><code>undefined</code></td><td>🔴</td></tr></tbody></table><h2 id="url" tabindex="-1"><code>url</code> <a class="header-anchor" href="#url" aria-label="Permalink to "`url`""></a></h2><p>Validate that an attribute has a valid URL format</p><div class="vp-code-group vp-adaptive-theme"><div class="tabs"><input type="radio" name="group-ookyq" id="tab-nodn7TH" checked><label data-title="Declarative" for="tab-nodn7TH">Declarative</label><input type="radio" name="group-ookyq" id="tab-q-RTX8t"><label data-title="Function-based" for="tab-q-RTX8t">Function-based</label><input type="radio" name="group-ookyq" id="tab-FRYnfx6"><label data-title="Direct usage" for="tab-FRYnfx6">Direct usage</label></div><div class="blocks"><div class="language-ts vp-adaptive-theme active"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { profile: </span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"url"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { validate, url } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">await</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;"> validate</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(data, { profile: [</span><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">url</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">()] });</span></span></code></pre></div><div class="language-ts vp-adaptive-theme"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes github-light github-dark vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">import</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;"> { isUrl } </span><span style="--shiki-light:#D73A49;--shiki-dark:#F97583;">from</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;"> "robust-validator"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">;</span></span>
<span class="line"><span style="--shiki-light:#6A737D;--shiki-dark:#6A737D;">// ...</span></span>
<span class="line"><span style="--shiki-light:#6F42C1;--shiki-dark:#B392F0;">isUrl</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">(</span><span style="--shiki-light:#032F62;--shiki-dark:#9ECBFF;">"https://axe-api-com"</span><span style="--shiki-light:#24292E;--shiki-dark:#E1E4E8;">);</span></span></code></pre></div></div></div><table tabindex="0"><thead><tr><th>Rule</th><th>Value</th><th>Is valid?</th></tr></thead><tbody><tr><td><code>url</code></td><td><code>null</code></td><td>🔴</td></tr><tr><td><code>url</code></td><td><code>undefined</code></td><td>🔴</td></tr><tr><td><code>url</code></td><td><code>https://example.com</code></td><td>🟢</td></tr><tr><td><code>url</code></td><td><code>http://example.com</code></td><td>🟢</td></tr><tr><td><code>url</code></td><td><code>ftp://example.com</code></td><td>🟢</td></tr><tr><td><code>url</code></td><td><code>invalid-url</code></td><td>🔴</td></tr></tbody></table></div></div></main><footer class="VPDocFooter" data-v-e6f2a212 data-v-1bcd8184><!--[--><!--]--><div class="edit-info" data-v-1bcd8184><div class="edit-link" data-v-1bcd8184><a class="VPLink link vp-external-link-icon no-icon edit-link-button" href="https://github.com/axe-api/validator/edit/main/docs/rules.md" target="_blank" rel="noreferrer" data-v-1bcd8184><!--[--><span class="vpi-square-pen edit-link-icon" data-v-1bcd8184></span> Edit this page on GitHub<!--]--></a></div><div class="last-updated" data-v-1bcd8184><p class="VPLastUpdated" data-v-1bcd8184 data-v-1bb0c8a8>Last updated: <time datetime="2025-07-10T22:08:41.000Z" data-v-1bb0c8a8></time></p></div></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-1bcd8184><span class="visually-hidden" id="doc-footer-aria-label" data-v-1bcd8184>Pager</span><div class="pager" data-v-1bcd8184><a class="VPLink link pager-link prev" href="/terminology.html" data-v-1bcd8184><!--[--><span class="desc" data-v-1bcd8184>Previous page</span><span class="title" data-v-1bcd8184>Terminology</span><!--]--></a></div><div class="pager" data-v-1bcd8184><a class="VPLink link pager-link next" href="/i18n.html" data-v-1bcd8184><!--[--><span class="desc" data-v-1bcd8184>Next page</span><span class="title" data-v-1bcd8184>i18n</span><!--]--></a></div></nav></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-d8b57b2d data-v-566314d4><div class="container" data-v-566314d4><p class="message" data-v-566314d4>Released under the MIT License. | <a href="/privacy-policy">Privacy Policy</a> | <a href="/cookie-policy">Cookie Policy</a> | <a style="cursor: pointer" data-cc="show-preferencesModal">Cookie preferences</a></p><p class="copyright" data-v-566314d4>Copyright © 2020-present</p></div></footer><!--[--><!--]--></div></div>
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