Self-compiled trim method similar to JS _ javascript skills

Here we can use our own trim method to deal with the need to cut the null strings at both ends of the string. Below is a good method, if you are interested, you can refer to the JS trim method, which is not supported by many browsers. Therefore, we can use our own trim method to deal with the need to cut the empty strings at both ends of the string. there are many processing methods. Here I only choose one method that has been tested by myself.

The Code is as follows:

String. prototype. trim = function (){
Return this. replace (/^ \ s */, ''). replace (/\ s * $ /,'');
}