mirror of https://github.com/tc39/test262.git
30 lines
880 B
JavaScript
30 lines
880 B
JavaScript
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// 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-arraybuffer.isview
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description: >
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`isView` can be invoked as a function
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info: >
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24.1.3.1 ArrayBuffer.isView ( arg )
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1. If Type(arg) is not Object, return false.
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2. If arg has a [[ViewedArrayBuffer]] internal slot, return true.
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3. Return false.
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features: [TypedArray, DataView]
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includes: [testTypedArray.js]
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---*/
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var isView = ArrayBuffer.isView;
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testWithTypedArrayConstructors(function(ctor) {
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var sample = new ctor();
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assert.sameValue(isView(sample), true, "instance of TypedArray");
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});
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var dv = new DataView(new ArrayBuffer(1), 0, 0);
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assert.sameValue(isView(dv), true, "instance of DataView");
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assert.sameValue(isView(), false, "undefined arg");
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assert.sameValue(isView({}), false, "ordinary object");
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