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 uses inherited valueOf method when 'length' is an object with an own toString and inherited valueOf methods ---*/ var toStringAccessed = false; var valueOfAccessed = false; var proto = { valueOf: function() { valueOfAccessed = true; return 2; } }; var Con = function() {}; Con.prototype = proto; var child = new Con(); child.toString = function() { toStringAccessed = true; return 2; }; var obj = { 1: true, length: child }; assert.sameValue(Array.prototype.indexOf.call(obj, true), 1, 'Array.prototype.indexOf.call(obj, true)'); assert(valueOfAccessed, 'valueOfAccessed !== true'); assert.sameValue(toStringAccessed, false, 'toStringAccessed');