How to Data Bind in Angular 17 - Frontend - A Expert Frontend Developer Must Knew it

Data Binding : 

            Data binding in Angular refers to the automatic synchronization of data between the model (component) and the view (template). It allows you to establish a connection between the DOM and the component's properties or methods. There are four types of data binding in Angular:

Types of Data Binding :

1. Interpolation ({{ }}): It binds data from the component to the view, displaying component properties in the HTML template.

2. Property Binding ([ ]): It binds data from the component to the DOM properties or attributes, allowing you to set properties dynamically.

3. Event Binding (( )): It binds events from the DOM to the component, allowing you to handle user events like click, input, etc., in the component.

4. Two-Way Data Binding ([( )]): It combines property binding and event binding, allowing data to flow both from the component to the view and from the view to the component, providing a seamless synchronization between the two.

Example:



Component.ts

import { Component } from '@angular/core';

@Component({

  selector: 'app-user'

})

export class UserComponent {

  title = 'Angular Data Binding';

  name = 'John Doe';

  message = '';


  onInputChange(value: string) {

    this.name = value;

  }


  onClick() {

    this.message = 'Button clicked!';

  }

}


Component.html

<h1>{{ title }}</h1>

    <input type="text" [value]="name" (input)="onInputChange($event.target.value)">

    <button (click)="onClick()">Click Me</button>

    <p>{{ message }}</p>

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