1 // Copyright 2015 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 // ES6 specifically says that elements should be checked with [[HasElement]] before 6 // [[Get]]. This is observable in case a getter deletes elements. ES5 put the 7 // [[HasElement]] after the [[Get]]. 8 9 assertTrue(1 in Array.prototype.reverse.call( 10 {length:2, get 0(){delete this[0];}, 1: "b"})) 11
