/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 vote214 views1 answer
What is the difference between angular changedetection default and onpush stratergy
Javascript AngularJS
0 vote189 views2 answers
Split string in angular 8
Javascript AngularJS
0 vote201 views1 answer
You seem to not be depending on "@angular/core" and/or "rxjs". This is an error.
Javascript AngularJS
9 votes217 views4 answers
Scroll to top when routing angular
Javascript AngularJS
0 vote229 views1 answer
Command to check dependencies in angular
Javascript AngularJS
0 vote223 views1 answer
Onclick add active class in angular
Javascript AngularJS
0 vote193 views1 answer
Scrollout js angular
Javascript AngularJS
0 vote187 views1 answer
List of string angular
Javascript AngularJS
3 votes199 views2 answers
Angular clone array without reference
Javascript AngularJS
0 vote228 views1 answer
How to set header in angular 8post
Javascript AngularJS