import 'dart:html'; import 'dart:async'; main() async { List li = ["-", "\\", "|", "/"]; for (var i = 0; i < 400000000; i++) { querySelector('#test').text = li[i % 4]; (await new Future.delayed(const Duration(seconds: 1))); } }
for (var i = 0; i < li.length; i++) { // TO DO var currentElement = li[i]; }