Javascript converts two-byte characters into single-byte characters and calculates the length. It is a javascript byte.

Javascript converts two-byte characters into single-byte characters and calculates the length. It is a javascript byte.

Copy codeThe Code is as follows: function (s ){
Return Math. ceil (s. replace (/[\ u4e00-\ u9fa5]/g, 'xx'). length/2 );
}

You can also use (/[^ \ x00-\ xff]/g, '**') to replace the double byte character '**'.
(/[\ U4e00-\ u9fa5]/g, '**') Is it a unicode encoding that replaces Chinese characters with '**', \ u4e00-\ u9fa5?

The above is all about the content of this article. For more information about the JavaScript syntax, see: JavaScript reference tutorial and JavaScript code style guide. I also hope you can provide more support.