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452c0e5c61
* Automated assertion message update: Array.from * Automated assertion message update: Array.isArray * Automated assertion message update: Array length property * Automated assertion message update: Array.of * Automated assertion message update: Array * Automated assertion message update: Array.prototype.at * Automated assertion message update: Array.prototype.concat * Automated assertion message update: compareArray -> assert.compareArray
31 lines
1.0 KiB
JavaScript
31 lines
1.0 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-array.isarray
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es6id: 22.1.2.2
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description: Proxy of an array is treated as an array
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info: |
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1. Return IsArray(arg).
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7.2.2 IsArray
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[...]
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3. If argument is a Proxy exotic object, then
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a. If the value of the [[ProxyHandler]] internal slot of argument is null,
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throw a TypeError exception.
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b. Let target be the value of the [[ProxyTarget]] internal slot of
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argument.
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c. Return ? IsArray(target).
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features: [Proxy]
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---*/
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var objectProxy = new Proxy({}, {});
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var arrayProxy = new Proxy([], {});
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var arrayProxyProxy = new Proxy(arrayProxy, {});
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assert.sameValue(Array.isArray(objectProxy), false, 'Array.isArray(new Proxy({}, {})) must return false');
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assert.sameValue(Array.isArray(arrayProxy), true, 'Array.isArray(new Proxy([], {})) must return true');
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assert.sameValue(
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Array.isArray(arrayProxyProxy), true, 'Array.isArray(new Proxy(arrayProxy, {})) must return true'
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);
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