Javascript code to remove spaces from strings (intermediate spaces can be removed) _ javascript skills

I have issued a lot of code to remove spaces from strings, but they all remove the beginning and end. The following code can remove the middle. Javascript trim space removal function implementation code
Http://www.jb51.net/article/16250.htm

The following is the enhanced version

The Code is as follows:

// Function: 1) Remove all spaces before and after the string
// 2) Remove all spaces in the string (including spaces in the middle, you must set the 2nd parameter to: g)
Function Trim (str, is_global)
{
Var result;
Result = str. replace (/(^ \ s +) | (\ s + $)/g ,"");
If (is_global.toLowerCase () = "g ")
Result = result. replace (/\ s/g ,"");
Return result;
}