test262/test/language/expressions/delete/11.4.1-5-a-27-s.js

23 lines
521 B
JavaScript

// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-delete-operator-runtime-semantics-evaluation
description: >
Strict Mode - TypeError is thrown after deleting a property,
calling preventExtensions, and attempting to reassign the property
flags: [onlyStrict]
---*/
var a = {
x: 0,
get y() {
return 0;
},
};
delete a.x;
Object.preventExtensions(a);
assert.throws(TypeError, function() {
a.x = 1;
});