I was trying to use EventEmitter to emit custom events and to handle show/hide components in the AppComponent based on the menu item/link that was clicked in the header. In the parent component EventEmitter parameter value undefined for listener.
I am getting the following error EventEmitter Error: Expected 0 type arguments, but got 1 in Angular.
In this tutorial let’s see how to implement Angular 9 EventEmitter example. The main purpose of an EventEmitter in Angular is to create custom events and fire them as per your requirement.