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17 lines
482 B
JavaScript
17 lines
482 B
JavaScript
// Copyright (c) 2012 Ecma International. 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-undefined
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description: undefined is not writable, should throw TypeError in strict mode
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flags: [onlyStrict]
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---*/
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var global = this;
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assert.throws(TypeError, function() {
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global["undefined"] = 5; // Should throw a TypeError as per 8.12.5
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});
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assert.sameValue(global["undefined"], void 0);
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assert.sameValue(undefined, void 0);
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