angular prevent double click

1// <button (click)="clickEvent.next()">Click Me</button>
2
3class YourComponent implements OnInit {
4	
5    clickEvent = new Subject();
6    
7    ngOnInit() {
8         // throttleTime() executes the event immediately, and discards
9         //    any new events until 300ms have passed.
10         this.clickEvent.pipe(throttleTime(300))
11                        .subscribe(() => console.log('Clicked'));
12      
13         // debounceTime() delays the event by 300ms, and the timer resets
14         //    if another event occurs.
15         this.clickEvent.pipe(debounceTime(300))
16                        .subscribe(() => console.log('Clicked');
17                                   
18         // remember to unsubscribe() !!!
19    }
20}