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JS uses regular expressions to find the length of the longest continuous substring

小云云
小云云Original
2018-01-02 15:42:012017browse

本文主要介绍了js 正则找出最长连续子串长度的实现代码,需要的朋友可以参考下,希望能帮助到大家。

废话不多说了,直接给大家贴代码了,具体代码如下所示:

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;
}

js使用正则查找子串

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

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