javascript查找字符串中出现最多的字符和次数的小例子_javascript技巧

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('最多的字符:'+value+',个数:'+num);