Strict mode Passingnon-Strict mode Passing
Features:
- ∅
// Copyright (c) 2012 Ecma International. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-array.prototype.lastindexof description: Array.prototype.lastIndexOf when fromIndex is boolean ---*/ var a = new Array(1, 2, 1); assert.sameValue(a.lastIndexOf(2, true), 1, 'true resolves to 1'); assert.sameValue(a.lastIndexOf(2, false), -1, 'false resolves to 0');