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 - deleting own property causes index property not to be visited on an Array-like object ---*/ function callbackfn(val, idx, obj) { if (idx === 1) { return false; } else { return true; } } var obj = { length: 2 }; Object.defineProperty(obj, "1", { get: function() { return 6.99; }, configurable: true }); Object.defineProperty(obj, "0", { get: function() { delete obj[1]; return 0; }, configurable: true }); var testResult = Array.prototype.map.call(obj, callbackfn); assert.sameValue(testResult[0], true, 'testResult[0]'); assert.sameValue(typeof testResult[1], "undefined", 'typeof testResult[1]');