Summary of sorting methods implemented in JS

This time I will bring you a summary of JS implementation of sorting methods. What are the precautions for JS implementation of sorting? . The following is a practical case, let's take a look.

Bubble sort

 function Bubble(arr){
    var temp; for(var i=0;i<arr.length-1;i++){
      for(var j=i+1;j<arr.length;j++){
        if(arr[i]>arr[j]){
          temp=arr[i];
          arr[i]=arr[j];
          arr[j]=temp;
        }
      }
    }
    return arr;
  }
  console.log(Bubble([2,5,1,0,6,2]))  //[0,1,2,2,5,6]

Select sort

function selctor(arr){
    var min;
    for(var i=0;i<arr.length-1;i++){
      min=i;
      //依次找到为最小值的索引
      for(var j=i+1;j<arr.length;j++){
        if(arr[min]>arr[j]){
          min=j;
        }
      }
      //如果最小值不在当前位置上 就交换到位置i
      if(min!=i){
        swap(arr,min,i)
      }
    }
    return arr
  }
  function swap(arr,index1,index2) {
    var temp=arr[index1];
    arr[index1]=arr[index2];
    arr[index2]=temp;
  }

Insertion sort

 function insert(arr){
    var j,key;
   for(var i=1;i<arr.length;i++){
     j=i;
     key=arr[i];
     while(--j>-1){
       if(arr[j]>key) {
         arr[j + 1] = arr[j];
       }else{
         break;
       }
     }
     arr[j+1]=key;
   }
   return arr
  }

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the PHP Chinese website!

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