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/// Copyright (c) 2012 Ecma International. All rights reserved.
/// Ecma International makes this code available under the terms and conditions set
/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
/// "Use Terms"). Any redistribution of this code must retain the above
/// copyright and this notice and otherwise comply with the Use Terms.
/**
* @path ch15/15.4/15.4.4/15.4.4.17/15.4.4.17-2-4.js
* @description Array.prototype.some - 'length' is an own data property that overrides an inherited data property on an array
*/
function testcase() {
var arrProtoLen = 0;
function callbackfn1(val, idx, obj) {
return val > 10;
}
function callbackfn2(val, idx, obj) {
return val > 11;
}
try {
arrProtoLen = Array.prototype.length;
Array.prototype.length = 0;
Array.prototype[2] = 12;
return [9, 11].some(callbackfn1) &&
![9, 11].some(callbackfn2);
} finally {
Array.prototype.length = arrProtoLen;
delete Array.prototype[2];
}
}
runTestCase(testcase);
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