40.@返回字符串中出現次數最多的那個字符和次數2
阿新 • • 發佈：2017-06-13
script 最大 spl 技術分享 char 獲取 code java log
1 <!DOCTYPE html> 2 <html> 3 <head lang="en"> 4 <meta charset="UTF-8"> 5 <title>@返回字符串中出現次數最多的那個字符和次數2</title> 6 7 </head> 8 <body> 9 </body> 10 11 <script type="text/javascript"> 12 //將字符串的字符保存在一個hash table中，key是字符，value是這個字符出現的次數View Code13 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 /*遍歷這個hash table，獲取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>@返回字符串中出現次數最多的那個字符和次數2</title>
</head>
<body>
</body>
<script type="text/javascript">
//將字符串的字符保存在一個hash table中，key是字符，value是這個字符出現的次數
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]++;
}
}
/*遍歷這個hash table，獲取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>
40.@返回字符串中出現次數最多的那個字符和次數2