hasEmitHandler method
Full documentation: https://www.ezflap.io/deep-dive/events/events.html
Use this method to check whether a particular emit handler is available
(i.e. if one was provided by the host widget using z-on
).
Implementation
@protected
@nonVirtual
bool hasEmitHandler(String emitKey) {
return (this.widget.$tryGetEmitHandler(emitKey) != null);
}