import 'package:js/src/varargs.dart' as js; import 'package:js/src/varargs.dart' show rest, spread; varargsTest(x, @js.rest others) { var args = [1, others]; x.call(js.spread(args)); } varargsTest2(x, @rest others) { var args = [1, others]; x.call(spread(args)); }