Example of sorting numbers in a weight-based order

sorting-example.js

var items = function(num) {
    var arr = [1,3,3,5,2,7,4,10,6,4];

    /*
     * Sort array low-high first
     */
    arr.sort(function(a,b) {
        return a - b;
    });

    /*
     * Sort array matter of known integer
     */
    return sort_items(num, arr);
}

var sort_items  = function(num, arr) {

    /* New output array */
    var out     = [],

        /* sorted is false by default */
        sorted  = false,
        sorting = function(arr) {

            /*
             * Set cursor to 0
             */
            var curr    = arr[0],

                /*
                 * Get absolute number in array
                 */
                diff    = Math.abs (num - curr);

            /*
             * Loop through the array and find the
             * closest match
             */
            for (var i = 0; i < arr.length; i++) {
                var newdiff = Math.abs (num - arr[i]);
                if (newdiff < diff) {
                    diff        = newdiff;
                    curr        = arr[i];
                }
            }

            /*
             * Push cursor value to output array
             */
            out.push(curr);

            /*
             * Get the index of cursor selected
             * value in array and remove
             */
            var index = arr.indexOf(curr);
            if (index > -1) {
                arr.splice(index, 1);
            }

            /*
             * If there is still length in the
             * array, repeat...
             */
            if(arr.length>0) {
                sorting(arr);
            } else {
                sorted  = true;
            }

            /*
             * Return new sorted array
             */
            if(sorted==true) {
                return out;
            }
        }

    return sorting(arr);
}

// num = 1
[1, 2, 3, 3, 4, 4, 5, 6, 7, 10]

// num = 2
[2, 1, 3, 3, 4, 4, 5, 6, 7, 10]

// num = 3
[3, 3, 2, 4, 4, 1, 5, 6, 7, 10]

// num = 4
[4, 4, 3, 3, 5, 2, 6, 1, 7, 10]

// num = 5
[5, 4, 4, 6, 3, 3, 7, 2, 1, 10]

// num = 6
[6, 5, 7, 4, 4, 3, 3, 2, 10, 1]

// num = 7
[7, 6, 5, 4, 4, 10, 3, 3, 2, 1]

// num = 8
[7, 6, 10, 5, 4, 4, 3, 3, 2, 1]

// num = 9
[10, 7, 6, 5, 4, 4, 3, 3, 2, 1]

// num = 10
[10, 7, 6, 5, 4, 4, 3, 3, 2, 1]