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.indexof description: Array.prototype.indexOf with negative fromIndex ---*/ var a = new Array(1, 2, 3); assert.sameValue(a.indexOf(2, -1), -1, 'a.indexOf(2,-1)'); assert.sameValue(a.indexOf(2, -2), 1, 'a.indexOf(2,-2)'); assert.sameValue(a.indexOf(1, -3), 0, 'a.indexOf(1,-3)'); assert.sameValue(a.indexOf(1, -5.3), 0, 'a.indexOf(1,-5.3)');