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Answer: 51 #1454

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Answer: 51 #1454

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10 changes: 4 additions & 6 deletions apps/signal/51-function-call-effect/src/app/action.component.ts
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Original file line number Diff line number Diff line change
@@ -1,7 +1,6 @@
import {
ChangeDetectionStrategy,
Component,
effect,
inject,
signal,
} from '@angular/core';
Expand All @@ -18,7 +17,8 @@ import { UserService } from './user.service';
</label>
<select
name="actions"
[(ngModel)]="action"
[ngModel]="action"
(ngModelChange)="logMessage($event)"
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@tomalaforge tomalaforge Mar 22, 2026

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ahah, that's the better way but the goal was to use the untrack function. But that's a lot better. Need to find another use case 😅

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@phhien203 phhien203 Mar 23, 2026

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Yep. untrack is also nice. At least I learned how it is visualized in the Signal graph.

id="actions"
class="block w-full rounded-lg border border-gray-300 bg-gray-50 p-2.5 text-sm text-gray-900 focus:border-blue-500 focus:ring-blue-500">
<option selected>Please select an action</option>
Expand All @@ -36,9 +36,7 @@ export class ActionsComponent {

protected actions = ['Create', 'Read', 'Update', 'Delete'];

constructor() {
effect(() => {
this.userService.log(this.action() ?? 'No action selected');
});
logMessage(action: string | undefined) {
this.userService.log(action ?? 'No action selected');
}
}
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