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.map description: > Array.prototype.map - modifications to length don't change number of iterations on an Array ---*/ var called = 0; function callbackfn(val, idx, obj) { called += 1; return val > 10; } var arr = [9, , 12]; Object.defineProperty(arr, "1", { get: function() { arr.length = 2; return 8; }, configurable: true }); var testResult = arr.map(callbackfn); assert.sameValue(testResult.length, 3, 'testResult.length'); assert.sameValue(called, 2, 'called'); assert.sameValue(typeof testResult[2], "undefined", 'typeof testResult[2]');