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// 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.lastindexof
es5id: 15.4.4.15-8-b-iii-2
description: >
Array.prototype.lastIndexOf returns without visiting subsequent
element once search value is found
---*/
var arr = [2, 1, , 1, 2];
var elementFirstAccessed = false;
var elementThirdAccessed = false;
Object.defineProperty(arr, "2", {
get: function() {
elementThirdAccessed = true;
return 2;
},
configurable: true
});
Object.defineProperty(arr, "0", {
get: function() {
elementFirstAccessed = true;
return 2;
},
configurable: true
});
arr.lastIndexOf(2);
assert.sameValue(elementThirdAccessed, false, 'elementThirdAccessed');
assert.sameValue(elementFirstAccessed, false, 'elementFirstAccessed');
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