Javascript looks for a small example of the number of characters and the number of occurrences in a string

2020-03-26 21:41:57
OfStack


<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  
 <html xmlns="http://www.w3.org/1999/xhtml">  
 <head>  
 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />  
 <title> Headless document </title>  
 <script>  
 var str = 'hskflassssssssskssssdssssussssghgfhssssdsssfh';  
 var arr = str.split('');  
 arr.sort();  
 str = arr.join('');  
 var re = /(w)1+/g;  
 var value = '';  
 var num = 0;  
 str.replace(re,function($0,$1){  
 if($0.length > num){  
 num = $0.length;  
 value = $1;  
 }  
 });  
 alert(' Most characters :'+value+', The number of :'+num);  
 </script>  
 </head>  
 <body>  
 </body>  
 </html>