Insertion sort [ Ascending and descending ] Implementation using Dart programming language

insertionSort.dart

void insertionSort_asc(var L){
  int n=L.length;
  for(var i=1;i<n;i++){
    var item=L[i];
    var j=i-1;
    while(j>=0 && L[j]>item){
      L[j+1]=L[j];
        j=j-1;
        L[j+1]=item;
    }
  }
}
void insertionSort_dsc(var L){
  int n=L.length;
  for(var i=1;i<n;i++){
    var item=L[i];
    var j=i-1;
    while(j>=0 && L[j]<item){
      L[j+1]=L[j];
        j=j-1;
        L[j+1]=item;
    }
  }
}
void main() {
 print("============ Descending =============");
 var L1=[8,1,77,12,67,5,19,4,7,10,100];
 print("Before sort L1: ${L1}");
    insertionSort_dsc(L1);
 print("After sort L1: ${L1}");
 print("============ Ascending =============");
 var L2=[8,1,77,12,67,5,19,4,7,10,100];
 print("Before sort L2: ${L2}");
    insertionSort_asc(L2);
 print("After sort L2: ${L2}");
}