Determining the length of a string (optimized version) Chinese takes two characters_javascript skills

I just saw the js method I wrote before: calculate the length of a string (2 characters in Chinese).

Method:

var str = '123YesYesYes';

var strArr = str.split('');

var count = 0;

for(strArr.length){ **** }

…………(No more coding, I’m tired!!)

After modification:

Copy code The code is as follows:

var str = '123YesYesYes';
var tmpStr = str.replace(/[u4e00-u9fa5]/gi,"aa");
//print
tmpStr.length