mirror of https://github.com/tc39/test262.git
19 lines
570 B
JavaScript
19 lines
570 B
JavaScript
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// Copyright (c) 2020 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-assignment-operators-runtime-semantics-evaluation
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description: >
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Strict Mode - TypeError is not thrown if The LeftHandSide of a Logical
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Assignment operator(&&=) is a reference to a non-existent property of an
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object whose [[Extensible]] internal property is false.
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flags: [onlyStrict]
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---*/
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var obj = {};
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Object.preventExtensions(obj);
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obj.prop &&= 1;
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assert.sameValue(obj.prop, undefined, "obj.prop");
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