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.splice description: > Array.prototype.splice will splice an array even when Array.prototype has index '0' set to read-only and 'fromPresent' less than 'actualDeleteCount (Step 9.c.ii) ---*/ var arr = ["a", "b", "c"]; Array.prototype[0] = "test"; var newArr = arr.splice(2, 1, "d"); var verifyValue = false; verifyValue = arr.length === 3 && arr[0] === "a" && arr[1] === "b" && arr[2] === "d" && newArr[0] === "c" && newArr.length === 1; var verifyEnumerable = false; for (var p in newArr) { if (newArr.hasOwnProperty("0") && p === "0") { verifyEnumerable = true; } } var verifyWritable = false; newArr[0] = 12; verifyWritable = newArr[0] === 12; var verifyConfigurable = false; delete newArr[0]; verifyConfigurable = newArr.hasOwnProperty("0"); assert(verifyValue, 'verifyValue !== true'); assert.sameValue(verifyConfigurable, false, 'verifyConfigurable'); assert(verifyEnumerable, 'verifyEnumerable !== true'); assert(verifyWritable, 'verifyWritable !== true');