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 must return correct index(null) ---*/ var obj = { toString: function() { return null } }; var _null = null; var a = new Array(true, undefined, 0, false, _null, 1, "str", 0, 1, obj, true, false, null); assert.sameValue(a.indexOf(null), 4, 'a[4]=_null');