Javascript 查找字符串中出现最多的字符和出现的次数
<script type="text/javascript"> //查找字符串中出现最多的字符和出现的次数 var str = 'Thatwheneying its on security.'; function find(str) { var max = 0, c; while(str) { var char = str.charAt(0); var a = str.split(char); var count = str.length - (str = a.join("")).length; if(count > max) { max = count; c = char; } } return {"max":max, "char":c}; } console.log(find(str)); </script>