Strict mode Passingnon-Strict mode Passing
Features:
- ∅
// Copyright (C) 2016 the V8 project authors. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-properties-of-the-object-prototype-object description: > Object.prototype is still extensible and may have extensions prevented info: | 19.1.3 Properties of the Object Prototype Object The value of the [[Prototype]] internal slot of the Object prototype object is null and the initial value of the [[Extensible]] internal slot is true. ---*/ assert( Object.isExtensible(Object.prototype), "Object.prototype is extensible" ); assert.sameValue( Object.preventExtensions(Object.prototype), Object.prototype, "Object.prototype may have extensions prevented" ); assert.sameValue( Object.isExtensible(Object.prototype), false, "Object.prototype is not extensible after a preventExtensions operation" );