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18 lines
553 B
JavaScript
18 lines
553 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-setintegritylevel
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description: Object.seal - the extension of 'O' is prevented already
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---*/
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var obj = {};
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obj.foo = 10; // default value of attributes: writable: true, configurable: true, enumerable: true
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var preCheck = Object.isExtensible(obj);
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Object.preventExtensions(obj);
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Object.seal(obj);
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assert(preCheck, 'preCheck !== true');
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assert(Object.isSealed(obj), 'Object.isSealed(obj) !== true');
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