Import ReactiveFormsModule
, and then
import { Component, OnInit, OnDestroy } from '@angular/core';
import { FormControl } from '@angular/forms';
import { Subscription } from 'rxjs';
@Component({
selector: 'component',
template: `
<input [formControl]="control" />
<div *ngFor="let item of content">
{{item.id}} - {{item.name}}
</div>
`
})
export class MyComponent implements OnInit, OnDestroy {
public control = new FormControl('');
public content: { id: number; name: string; }[];
private originalContent = [
{ id: 1, name: 'abc' },
{ id: 2, name: 'abce' },
{ id: 3, name: 'ced' }
];
private subscription: Subscription;
public ngOnInit() {
this.subscription = this.control.valueChanges.subscribe(value => {
this.content = this.originalContent.filter(item => item.name.startsWith(value));
});
}
public ngOnDestroy() {
this.subscription.unsubscribe();
}
}