LayoutTests/ietestcenter/Javascript/TestCases/15.4.4.15-5-20.js

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ES5Harness.registerTest({

    id: "15.4.4.15-5-20",

    path: "TestCases/chapter15/15.4/15.4.4/15.4.4.15/15.4.4.15-5-20.js",

    description: "Array.prototype.lastIndexOf when value of 'fromIndex' which is a string containing a number with leading zeros",

    test: function testcase() {
        var targetObj = {};
        return [0, true, targetObj, 3, false].lastIndexOf(targetObj, "0002.10") === 2 &&
            [0, true, 3, targetObj, false].lastIndexOf(targetObj, "0002.10") === -1;
    },

    precondition: function prereq() {
        return fnExists(Array.prototype.lastIndexOf);
    }

});