Ever-Synced Data
Imagine your UI reflecting changes like a magic mirror. That’s two-way data binding in Angular! It keeps your view (UI) and component data (model) constantly in sync.
Steps to Two-Way Magic
1. Import FormsModule: Include it in your module (@NgModule({ imports: [FormsModule] })) for form-related directives.
import { NgModule } from ‘@angular/core’;
import { FormsModule } from ‘@angular/forms’; // Import FormsModule for ngModel
import { AppComponent } from ‘./app.component’;
@NgModule({
declarations: [
AppComponent
],
imports: [
BrowserModule,
FormsModule // Add FormsModule to imports
],
providers: [],
bootstrap: [AppComponent]
})
export class AppModule { }
2. Use ngModel: Bind the component property to the input value with [(ngModel)]=”propertyName” (like a banana in a box!).
@Component({
selector: ‘app-root’,
templateUrl: ‘./app.component.html’,
styleUrls: [‘./app.component.css’]
})
export class AppComponent {
name = ‘Angular User’;
}
<label for=”name”>Name:</label>
<input type=”text” id=”name” [(ngModel)]=”name”>
</div>
<p>Hello, {{ name }}!</p>
3. Enjoy the Magic! Changes in the input update the property, and vice versa.