mirror of https://github.com/tc39/test262.git
23 lines
786 B
JavaScript
23 lines
786 B
JavaScript
// Copyright (c) 2012 Ecma International. All rights reserved.
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// Ecma International makes this code available under the terms and conditions set
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// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
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// "Use Terms"). Any redistribution of this code must retain the above
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// copyright and this notice and otherwise comply with the Use Terms.
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/*---
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description: >
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Object.preventExtensions - named properties cannot be added into a
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String object
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includes: [runTestCase.js]
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---*/
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function testcase() {
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var strObj = new String("bbq");
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var preCheck = Object.isExtensible(strObj);
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Object.preventExtensions(strObj);
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strObj.exName = 2;
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return preCheck && !strObj.hasOwnProperty("exName");
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}
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runTestCase(testcase);
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