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.some description: > Array.prototype.some - deleting own property with prototype property causes prototype index property to be visited on an Array ---*/ function callbackfn(val, idx, obj) { if (idx === 1 && val === 1) { return true; } else { return false; } } var arr = [0, 111, 2]; Object.defineProperty(arr, "0", { get: function() { delete arr[1]; return 0; }, configurable: true }); Array.prototype[1] = 1; assert(arr.some(callbackfn), 'arr.some(callbackfn) !== true');