1 <!DOCTYPE html>
2 <html>
3 <head lang="en">
4 <meta charset="UTF-8">
5 <title>@返回字符串中出现次数最多的那个字符和次数2</title>
6
7 </head>
8 <body>
9 </body>
10
11 <script type="text/javascript">
12 //将字符串的字符保存在一个hash table中，key是字符，value是这个字符出现的次数
13 var str = "eeefffgh";
14 var obj = {};
15 for (var i = 0, l = str.length; i < l; i++) {
16 var key = str[i];
17 if (!obj[key]) {
18 obj[key] = 1;
19 } else {
20 obj[key]++;
21 }
22 }
23
24 /*遍历这个hash table，获取value最大的key和value*/
25 var max = -1;
26 var max_key = "";
27 var key;
28 for (key in obj) {
29 if (max < obj[key]) {
30 max = obj[key];
31 max_key = key;
32 }
33 }
34
35 console.log("max:" + max + " max_key:" + max_key); //max:3 max_key:e
36 </script>
37 </html>
<!DOCTYPE html><html><head lang="en"> <meta charset="UTF-8"> <title>@返回字符串中出现次数最多的那个字符和次数2</title>
</head><body></body>
<script type="text/javascript"> //将字符串的字符保存在一个hash table中，key是字符，value是这个字符出现的次数 var str = "eeefffgh"; var obj = {}; for (var i = 0, l = str.length; i < l; i++) { var key = str[i]; if (!obj[key]) { obj[key] = 1; } else { obj[key]++; } }
/*遍历这个hash table，获取value最大的key和value*/ var max = -1; var max_key = ""; var key; for (key in obj) { if (max < obj[key]) { max = obj[key]; max_key = key; } }
console.log("max:" + max + " max_key:" + max_key); //max:3 max_key:e</script></html>
时间： 2024-12-05 15:56:51