util: allow styleText text param to accept non-string scalars

Allow util.styleText() to accept
umber, �oolean, and �igint`nvalues for the 	ext parameter, automatically coercing them to string
via String(text).

Previously, passing anything other than a string would throw
ERR_INVALID_ARG_TYPE. This forced callers to wrap every non-string
value manually:

  util.styleText('red', String(count)) // before
  util.styleText('red', count)        // after

The coercion is applied before the fast path so there is no extra
branching cost for the common string case. Values that cannot be
meaningfully stringified (null, undefined, Symbol, Function, Object)
still throw ERR_INVALID_ARG_TYPE as before.

Fixes: #63841

Signed-off-by: SparshGarg999 <sparshgarg999@gmail.com>

Author: SparshGarg999

doc/api/util.md

@@ -2574,7 +2574,9 @@ changes:
 * `format` {string | Array} A text format or an Array
   of text formats defined in `util.inspect.colors`, or a hex color in `#RGB`
   or `#RRGGBB` form.
-* `text` {string} The text to be formatted.
+* `text` {string|number|boolean|bigint} The text to be formatted.
+  Non-string scalar values (`number`, `boolean`, `bigint`) are coerced
+  to a string internally via `String(text)`.
 * `options` {Object}
   * `validateStream` {boolean} When true, `stream` is checked to see if it can handle colors. **Default:** `true`.
   * `stream` {Stream} A stream that will be validated if it can be colored. **Default:** `process.stdout`.

lib/util.js

@@ -237,7 +237,7 @@ function rgbToAnsi24Bit(r, g, b) {
 
 /**
  * @param {string | string[]} format
- * @param {string} text
+ * @param {string | number | boolean | bigint} text
  * @param {object} [options]
  * @param {boolean} [options.validateStream] - Whether to validate the stream.
  * @param {Stream} [options.stream] - The stream used for validation.
@@ -246,6 +246,14 @@ function rgbToAnsi24Bit(r, g, b) {
 function styleText(format, text, options) {
   const validateStream = options?.validateStream ?? true;
 
+  // Coerce scalar values (number, boolean, bigint) to string.
+  // This avoids requiring callers to manually cast values like
+  // `String(count)` before passing them to styleText.
+  const textType = typeof text;
+  if (textType === 'number' || textType === 'boolean' || textType === 'bigint') {
+    text = String(text);
+  }
+
   // Fast path: single format string with validateStream=false
   if (!validateStream && typeof format === 'string' && typeof text === 'string') {
     const cache = getStyleCache();
@@ -268,7 +276,9 @@ function styleText(format, text, options) {
     }
   }
 
-  validateString(text, 'text');
+  if (textType !== 'number' && textType !== 'boolean' && textType !== 'bigint') {
+    validateString(text, 'text');
+  }
   if (options !== undefined) {
     validateObject(options, 'options');
   }

test/parallel/test-util-styletext.js

@@ -23,13 +23,39 @@ const noChange = 'test';
   }, {
     code: 'ERR_INVALID_ARG_VALUE',
   }, invalidOption);
+});
+
+// Non-string scalars for `text` should NOT throw — they are coerced internally.
+[
+  null,
+  undefined,
+  Symbol(),
+  () => {},
+  {},
+].forEach((invalidText) => {
   assert.throws(() => {
-    util.styleText('red', invalidOption);
+    util.styleText('red', invalidText);
   }, {
     code: 'ERR_INVALID_ARG_TYPE'
-  }, invalidOption);
+  }, invalidText);
 });
 
+// Scalar values are coerced to string (number, boolean, bigint).
+assert.strictEqual(
+  util.styleText('red', 42, { validateStream: false }),
+  '\u001b[31m42\u001b[39m',
+);
+
+assert.strictEqual(
+  util.styleText('red', true, { validateStream: false }),
+  '\u001b[31mtrue\u001b[39m',
+);
+
+assert.strictEqual(
+  util.styleText('red', 3n, { validateStream: false }),
+  '\u001b[31m3\u001b[39m',
+);
+
 assert.throws(() => {
   util.styleText('invalid', 'text');
 }, {