1 // Copyright 2016 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 function* g(o) { 6 yield 'x' in o; 7 } 8 9 assertTrue(g({x: 1}).next().value); 10 assertFalse(g({}).next().value); 11
