Insertion sort in javascript

insertionSort

var insertionSort = function(array){
    var target;
    var sortedIndex = 0;
    var targetIndex;
    
    for(var i = 0; i < array.length; i++){
        target = array[i];
        targetIndex = i;
        
        for(var j = i; j >= sortedIndex; j--){
            if (array[j] > target){
                array[targetIndex] = array[j];
                array[j] = target;
                targetIndex--;
            }
        }
    }
    return array;
}

//console.log(insertionSort([2, 1, 3, 5, 4, 7, 9, 21, 10, 5]));