get input of component angular code example
Example 1: how to make input in angular optional
export class ChildComponent {
@Input() showName?: boolean;
constructor() { }
}
Example 2: how to pass variable via component after it's updated angular
<app-child
[data]="data"
(filterEmmiter)="filter($event)">
</app-child>
import {Component, OnChanges, SimpleChanges, Input} from '@angular/core';
class Child implements OnInit, OnChanges {
@Input() Data: any;
constructor() {}
ngOnchanges(changes: SimpleChanges) {
console.log(changes);
}
}