on<T> method

EventListener<Event<T>> on<T>(
  1. String? type, [
  2. EventCallback<T>? callback
])

Implementation

EventListener<Event<T>> on<T>(String? type, [EventCallback<T>? callback]) {
  final listener = EventListener<Event<T>>(
    type: type,
    callback: (event) => callback?.call(event.data),
    alias: callback,
  );

  addEventListener(listener);
  return listener;
}