/Javascript/AngularJS/Angular add debounce time before putting valu in subject next

Angular add debounce time before putting valu in subject next

import {Component}   from '@angular/core';
import {FormControl} from '@angular/forms';
import {Observable}  from 'rxjs/Observable';
import 'rxjs/add/operator/debounceTime';
import 'rxjs/add/operator/throttleTime';
import 'rxjs/add/observable/fromEvent';

@Component({
  selector: 'my-app',
  template: `<input type=text [value]="firstName" [formControl]="firstNameControl">
    <br>{{firstName}}`
})
export class AppComponent {
  firstName        = 'Name';
  firstNameControl = new FormControl();
  formCtrlSub: Subscription;
  resizeSub:   Subscription;
  ngOnInit() {
    // debounce keystroke events
    this.formCtrlSub = this.firstNameControl.valueChanges
      .debounceTime(1000)
      .subscribe(newValue => this.firstName = newValue);
    // throttle resize events
    this.resizeSub = Observable.fromEvent(window, 'resize')
      .throttleTime(200)
      .subscribe(e => {
        console.log('resize event', e);
        this.firstName += '*';  // change something to show it worked
      });
  }
  ngDoCheck() { console.log('change detection'); }
  ngOnDestroy() {
    this.formCtrlSub.unsubscribe();
    this.resizeSub  .unsubscribe();
  }
}

Source: stackoverflow.com

Similar codes

0 vote529 views1 answer
Mixed line chart for angular or react
Javascript AngularJS
-1 vote351 views1 answer
Change the focus to next in angular forms
Javascript AngularJS
0 vote361 views1 answer
Angular access service in console
Javascript AngularJS
3 votes341 views3 answers
Angular email validation
Javascript AngularJS
0 vote360 views1 answer
How to place icons on labels in chartjs angular
Javascript AngularJS
9 votes311 views6 answers
Update angular
Javascript AngularJS
0 vote342 views1 answer
Warn user before leaving page angular
Javascript AngularJS
0 vote338 views1 answer
Display unique id number in angular
Javascript AngularJS
0 vote301 views1 answer
Angular dart router without hash
Javascript AngularJS
0 vote321 views1 answer
Angular local storage ionic
Javascript AngularJS