| // Copyright (c) 2014 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| |
| /*--- |
| esid: sec-array.prototype.concat |
| es6id: 22.1.3.1_3 |
| description: Array.prototype.concat holey sloppy arguments |
| includes: [compareArray.js] |
| features: [Symbol.isConcatSpreadable] |
| ---*/ |
| var args = (function(a) { return arguments; })(1,2,3); |
| delete args[1]; |
| args[Symbol.isConcatSpreadable] = true; |
| assert(compareArray([1, void 0, 3, 1, void 0, 3], [].concat(args, args))); |
