function outer()
{
    var arr = [];
    var i;
    for (i = 0; i < 4; i++)
    {
        // storing anonymus function
        arr[i] = function () { return i; }
    }

    // returning the array.
    return arr;
}

var get_arr = outer();

console.log(get_arr[0]());
console.log(get_arr[1]());
console.log(get_arr[2]());
console.log(get_arr[3]());