<!DOCTYPE html> <htmllang="en"> <head> <metacharset="UTF-8"> <title>Title</title> <script> functionMyArray() { this.mySort=function (arr) { for(var i=0;i<arr.length;i++) { for(var j=i;j<arr.length;j++) { if(arr[i]>arr[j]) { var temp=arr[i]; arr[i]=arr[j]; arr[j]=temp; }//end if } // end for } // end for } // end fun mySort } // end fun arr=[123,12,123,33]; var myArray= new MyArray(); myArray.mySort(arr); console.log(arr); </script> </head> <body>