Simple as the title, really.

Is there a Regex expression to remove all whitespace except one between words.

So

"  Hello. How   are  you     today?    "

would become

"Hello. How are you today?"

Simple as the title, really.

Is there a Regex expression to remove all whitespace except one between words.

So

"  Hello. How   are  you     today?    "

would become

"Hello. How are you today?"

• javascript
• regex
• whitespace

2 Answers 2

This will do what you wish:

"  Hello. How   are  you     today?    ".replace(/\s{2,}/g,' ').trim() 

fiddle: http://jsfiddle.net/REAdV/

As you may find that trim() may not work fro ie 6/7/8 and some older browsers versions I would suggest using .replace(/^\s+|\s+$/g,'')

var str = "    fsdf d34234sf    sdfsdf   "; 
str=str.replace(/^\s+|\s+$/g,'');
returns:fsdf d34234sf sdfsdf