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 returns 0 if fromIndex is 'undefined' ---*/ var a = [1, 2, 3]; // undefined resolves to 0 assert.sameValue(a.indexOf(1, undefined), 0, 'a.indexOf(1,undefined)');