| // Copyright 2016 The V8 project authors. All rights reserved. | |
| // This code is governed by the license found in the LICENSE file. | |
| /*--- | |
| esid: sec-array.prototype.lastindexof | |
| description: > | |
| Return +0 when fromIndex is -0 and return index refers to the first position | |
| info: | | |
| 22.1.3.15 Array.prototype.lastIndexOf ( searchElement [ , fromIndex ] ) | |
| ... | |
| 5. If n ≥ 0, then | |
| a. If n is -0, let k be +0; else let k be min(n, len - 1). | |
| ... | |
| ---*/ | |
| assert.sameValue(1 / [true].lastIndexOf(true, -0), +Infinity); |