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21 lines
528 B
JavaScript
21 lines
528 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-delete-operator-runtime-semantics-evaluation
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description: >
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Strict Mode - TypeError is thrown when deleting non-configurable
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data property
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flags: [onlyStrict]
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---*/
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var obj = {};
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Object.defineProperty(obj, 'prop', {
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value: 'abc',
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configurable: false,
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});
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assert.throws(TypeError, function() {
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delete obj.prop;
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});
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assert.sameValue(obj.prop, 'abc', 'obj.prop');
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