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 applied to Arguments object which implements its own property get method (number of arguments is less than number of parameters) ---*/ var func = function(a, b) { return 0 === Array.prototype.indexOf.call(arguments, arguments[0]) && -1 === Array.prototype.indexOf.call(arguments, arguments[1]); }; assert(func(true), 'func(true) !== true');