has method
Returns true if callback is currently in the list of listeners.
Implementation
bool has(EventSignalCallback<T> callback) {
return _listeners.contains(callback) || _listenersOnce.contains(callback);
}
has method
Returns true if callback is currently in the list of listeners.
bool has(EventSignalCallback<T> callback) {
return _listeners.contains(callback) || _listenersOnce.contains(callback);
}