How to use setInterval/setTimeout in Dart SDK 0.4+

You can use:

1) SetInterval

_timer = new Timer.periodic(const Duration(seconds: 2), functionBack);

Where: `functionBack(Timer timer) {
  print('again');
}

2) SetTimeOut

_timer = Timer(Duration(seconds: 5), () => print('done'));

Where _time is type Time

In addition to Timer mentioned by Chris, there is a Future-based API:

var future = new Future.delayed(const Duration(milliseconds: 10), doStuffCallback);

There is not yet direct support for cancelling a Future callback, but this works pretty well:

var future = new Future.delayed(const Duration(milliseconds: 10));
var subscription = future.asStream().listen(doStuffCallback);
// ...
subscription.cancel();

Hopefully, there will soon be a Stream version of Timer.repeating as well.