Todo-list generator for webdev.dartlang.org/guides/get-started

main.dart

void main() {
  thingsTodo().forEach(print);
}

Iterable<String> thingsTodo() sync* {
	var actions = ['Walk', 'Wash', 'Feed'];
	var pets = ['cats', 'dogs'];
  
  for (var action in actions) {
    for (var pet in pets) {
      if (pet == 'cats' && action != 'Feed') continue;
      yield '$action the $pet';
    }
  }
}