How to remove extra white spaces using javascript or jquery?

Question

I got HTML element contains this:

    
  P6C245RO 
         


        

Answer 1

For the string

"    this  is my   string       "

You probably want to make the excessive spaces single spaces, but remove the leading and trailing spaces entirely. For that, add another .replace

s.replace(/\s+/g, " ").replace(/^\s|\s$/g, "");

For

"this is my string"

Update

s.replace(/\s+/g, " ").trim()

Thanks, @Pier-Luc Gendreau