1 <!DOCTYPE html>
2 <html lang="en">
3 <head>
4 <meta charset="UTF-8">
5 <title>Document</title>
6 <script>
7
8 var s="aaaabbbbssssssss";
9 var fres={}; //用来记录所有的字符的出现频次
10 var mostFreqChar=''; //用来记录最大频次的字符
11 for(var i=0;i<s.length;i++){
12 var char=s[i];
13 if(!fres[char]){
14 fres[char]=0;
15 }
16
17 fres[char]++;
18 if(mostFreqChar==''||fres[char]>fres[mostFreqChar]){
19 mostFreqChar=char;
20 }
21
22 }
23 console.log(mostFreqChar);
24 console.log(fres[mostFreqChar]);
25
26 </script>
27 </head>
28 <body>
29
30 </body>
31 </html>
