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 - element changed by getter on previous iterations is observed on an Array ---*/ var preIterVisible = false; var arr = []; function callbackfn(val, idx, obj) { if (idx === 0) { return val === 11; } else if (idx === 1) { return val === 9; } else { return false; } } Object.defineProperty(arr, "0", { get: function() { preIterVisible = true; return 11; }, configurable: true }); Object.defineProperty(arr, "1", { get: function() { if (preIterVisible) { return 9; } else { return 11; } }, configurable: true }); var testResult = arr.map(callbackfn); assert.sameValue(testResult[0], true, 'testResult[0]'); assert.sameValue(testResult[1], true, 'testResult[1]');