Sort by Insert Method.

insertSort.js

function insertSort (array) {
    for (var i = 1; i < array.length; i++) {
        var key = array[i], j = i - 1;
        
        while (j > -1 && array[j] > key)
            array[j + 1] = array[j--];
        
        array[j + 1] = key;
    }
    
    return array;
}