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.indexof description: > Array.prototype.indexOf - deleting own property causes index property not to be visited on an Array-like object ---*/ var arr = { length: 2 }; Object.defineProperty(arr, "1", { get: function() { return 6.99; }, configurable: true }); Object.defineProperty(arr, "0", { get: function() { delete arr[1]; return 0; }, configurable: true }); assert.sameValue(Array.prototype.indexOf.call(arr, 6.99), -1, 'Array.prototype.indexOf.call(arr, 6.99)');