JS使用正则表达式找出最长连续子串长度

function maxLenStr(str){  var len = 0, max_len = 0;  var reg = new RegExp("(.)//1{1,}","g");  var res = reg.exec(str);  while(res != null){    len = res[0].length;    if(max_len < len){      max_len = len;    }    res = reg.exec(str)  }  return max_len;}

var str = '#param1#abcdef#param2#hjklllj#param3#7878'var count = str.match(/param/d*/g)console.log(count) ／／ ["param1", "param2", "param3"]