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communication between components in angular
3 ways to communicate data between Angular components
Parent to Child: Sharing Data via Input
Child to Parent: Sharing Data via ViewChild with AfterViewInit
Child to Parent: Sharing Data via Output() and EventEmitter
angular send data to parent component
import { Component, Output, EventEmitter } from '@angular/core';
@Component({
selector: 'app-child',
template: `
<button (click)="sendMessage()">Send Message</button>
`,
styleUrls: ['./child.component.css']
})
export class ChildComponent {
message: string = "Hola Mundo!"
@Output() messageEvent = new EventEmitter<string>();
constructor() { }
sendMessage() {
this.messageEvent.emit(this.message)
}
}
Source: fireship.io
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