// 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); |