How to return a value from an EventEmitter function?

Question

I got this function in my core component:

 isValid(value: any) {

   // Do some stuff and return somethin         


        

Answer 1

You need to subscribe on the event emitter to get the value:

this.onBeforeAdding.emit(value || true);

this.onBeforeAdding.subscribe(isValid => {
  if (isValid) {
    // Do stuff
  }
});