symbol-property.js (726B)
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: 26.1.9 5 description: > 6 Return boolean value from a projectKey as a Symbol 7 info: | 8 26.1.9 Reflect.has ( target, propertyKey ) 9 10 ... 11 2. Let key be ToPropertyKey(propertyKey). 12 ... 13 14 7.1.14 ToPropertyKey ( argument ) 15 16 ... 17 3. If Type(key) is Symbol, then 18 a. Return key. 19 ... 20 features: [Reflect, Symbol] 21 ---*/ 22 23 var o = {}; 24 var s1 = Symbol('1'); 25 o[s1] = 42; 26 27 var s2 = Symbol('1'); 28 29 30 assert.sameValue(Reflect.has(o, s1), true, 'true from own property'); 31 assert.sameValue( 32 Reflect.has(o, s2), false, 33 'false when property is not present' 34 ); 35 36 reportCompare(0, 0);