JavaScript removes spaces at the left and right ends of a string_javascript skills

To remove the spaces at the left and right ends of the string, you can easily use trim, ltrim or rtrim in vbscript, but there are no these three built-in methods in js and need to be written manually. The following implementation method uses regular expressions, which is very efficient, and adds these three methods to the built-in methods of the String object.

The method format written as a class is as follows: (str.trim();)

Copy code The code is as follows:

​

It can be written as a function like this: (trim(str))

Copy code The code is as follows:

​

The above are two JavaScript methods for removing spaces on both sides of a string. I hope you will like it.