I'm relatively new to Dart. I'm mainly building very small Dart/HTML applications on Dartpad, but I would like to know:
what are the main differences between element.addEventListener(type, callback); and element.onEvent.listen(callback);, and where will those differences provide me an advantage, in what way, and in what situations?
Thanks!
Difference between onEvent.Listen() and addEventListener
Viewed 153
1 Answers
Seems like no one is going to give an answer, so I'll share a bit of my knowledge for anyone else who may have spotted this.
- element.onEvent is a Stream, where the listen method subscribes to that Stream. It seems it can add multiple event listeners.
- element.addEventListener seems to be a plain event listener. It can also add multiple events.
The only differences I can see are that addEventListener can add a listener dynamically to different types of events as you can pass a string into it -
var str = "click";
element.addEventListener(str, (_) {
print(1);
});
and possibly Streams may have unique methods that allow you to customize your event listener with element.onEvent.listen more.
Related