Convert JS function to Dart

Question

I have one small js code to fix one think on iOS devices, but I don't know how to write that code with touchend event at Dartlang. How to convert that js code to dartlang?

JS Code:

(function(l){var i,s={touchend:function(){}};for(i in s)l.addEventListener(i,s)})(document);

Answer 1

import 'dart:html';

main() {
  var listeners = {
    'touchend': (e) {},
  };
  listeners.forEach((type, listener) {
    document.addEventListener(type, listener);
  });
}