Stephen Adams
b016f035bd
This will need a second pass after core.Iterable is updated and JS type strings are better parsed. R=vsm@google.com Review URL: https://codereview.chromium.org/1950133003 .
28 lines
900 B
Dart
28 lines
900 B
Dart
// Copyright (c) 2013, 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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part of dart._js_helper;
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// TODO(leafp): Maybe get rid of this? Currently used by the interceptors
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// library, but that should probably be culled as well.
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Type getRuntimeType(var object) =>
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JS('Type|null', 'dart.getReifiedType(#)', object);
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/// Returns the property [index] of the JavaScript array [array].
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getIndex(var array, int index) {
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assert(isJsArray(array));
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return JS('var', r'#[#]', array, index);
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}
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/// Returns the length of the JavaScript array [array].
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int getLength(var array) {
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assert(isJsArray(array));
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return JS('int', r'#.length', array);
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}
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/// Returns whether [value] is a JavaScript array.
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bool isJsArray(var value) {
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return value is JSArray;
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}
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