js/src/tests/test262/language/expressions/logical-assignment/lgcl-and-assignment-operator-non-extensible-strict.js


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'use strict';
// Copyright (c) 2020 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-assignment-operators-runtime-semantics-evaluation
description: >
    Strict Mode - TypeError is not thrown if The LeftHandSide of a Logical
    Assignment operator(&&=) is a reference to a non-existent property of an
    object whose [[Extensible]] internal property is false.
flags: [onlyStrict]
features: [logical-assignment-operators]

---*/

var obj = {};
Object.preventExtensions(obj);

obj.prop &&= 1;
assert.sameValue(obj.prop, undefined, "obj.prop");

reportCompare(0, 0);