on<T> method
This function binds the handler as a listener to the event
Implementation
void on<T>(String event, EventHandler<T> handler) {
_events.putIfAbsent(event, () => <Function>[]);
_events[event]!.add(handler);
}
This function binds the handler as a listener to the event
void on<T>(String event, EventHandler<T> handler) {
_events.putIfAbsent(event, () => <Function>[]);
_events[event]!.add(handler);
}