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main.ts

index.html

import { bootstrapApplication } from '@angular/platform-browser';
import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  standalone: true,
  template: `
    <h3>Debounced Input</h3>
    <input type="text" placeholder="Type here" (input)="onInput($event)">
    <p>Immediate: {{ immediate }}</p>
    <p>Debounced (400ms): {{ debounced }}</p>
  `
})
export class App {
  immediate = '';
  debounced = '';
  handle = 0;

  onInput(e) {
    const v = (e && e.target) ? e.target.value : '';
    this.immediate = v;
    clearTimeout(this.handle);
    this.handle = setTimeout(() => this.debounced = v, 400);
  }
}

bootstrapApplication(App);

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Angular Events - Debounced Input</title>
</head>
<body>
  <app-root></app-root>
</body>
</html>