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26 lines
716 B
JavaScript
26 lines
716 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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info: |
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This test is actually testing the [[Delete]] internal method (8.12.8). Since the
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language provides no way to directly exercise [[Delete]], the tests are placed here.
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esid: sec-delete-operator-runtime-semantics-evaluation
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description: >
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delete operator returns true when deleting a configurable data
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property
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---*/
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var o = {};
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var desc = {
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value: 1,
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configurable: true,
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};
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Object.defineProperty(o, 'foo', desc);
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var d = delete o.foo;
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assert.sameValue(d, true, 'd');
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assert.sameValue(o.hasOwnProperty('foo'), false, 'o.hasOwnProperty("foo")');
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