trap-is-undefined.js (397B)
1 // Copyright (C) 2015 the V8 project authors. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 /*--- 4 es6id: 9.5.4 5 description: > 6 Return target.[[PreventExtensions]]() if target is undefined. 7 features: [Proxy, Reflect] 8 ---*/ 9 10 var target = {}; 11 var p = new Proxy(target, {}); 12 13 assert.sameValue(Reflect.preventExtensions(p), true); 14 15 reportCompare(0, 0);