Robert Nystrom
fc1b1ecc71
Change-Id: Idbcc965a27e9ffeedf5e0a1068b019de4193070f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/127745 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Alexander Thomas <athom@google.com>
18 lines
486 B
Dart
18 lines
486 B
Dart
// Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'package:expect/expect.dart';
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void main() {
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dynamic l;
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var val = l?.first?.abs();
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Expect.equals(null, val);
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l = [null, -2, -3];
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val = l?.first?.abs();
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Expect.equals(null, val);
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l = [-1, -2, -3];
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val = l?.first?.abs();
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Expect.equals(1, val);
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}
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