Leaf Petersen
b101a7d002
Change-Id: Ib33169c3e0ffc870915c189404074a1dea472546 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196548 Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Leaf Petersen <leafp@google.com>
19 lines
600 B
Dart
19 lines
600 B
Dart
// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
// @dart = 2.9
|
|
|
|
library null_test;
|
|
|
|
import 'dart:js';
|
|
import 'package:expect/expect.dart';
|
|
|
|
main() {
|
|
context.callMethod('eval', ['isNull = function (x) { return x === null; }']);
|
|
context.callMethod(
|
|
'eval', ['isUndefined = function (x) { return x === void 0; }']);
|
|
Expect.isTrue(context['isNull'].apply([null]));
|
|
Expect.isFalse(context['isUndefined'].apply([null]));
|
|
}
|