emit an event code example

Example 1: angular event emitter

@Output() open: EventEmitter<any> = new EventEmitter();


  toggel() {
  	this.open.emit(null);
  }

Example 2: emitter angular

<component
  (open)="open($event)"
></component>

Example 3: javascript emit event

const event = new Event('build');

// Listen for the event.
elem.addEventListener('build', function (e) { /* ... */ }, false);

// Dispatch the event.
elem.dispatchEvent(event);