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 - added properties in step 5 are visible here on an Array ---*/ var arr = []; arr.length = 30; var targetObj = function() {}; var fromIndex = { valueOf: function() { arr[4] = targetObj; return 3; } }; assert.sameValue(arr.indexOf(targetObj, fromIndex), 4, 'arr.indexOf(targetObj, fromIndex)');