Javascript - How to remove all extra spacing between words

Question

How can I remove all extra space between words in a string literal?

\"some    value\"

Should become

\"some value\"
<         


        

Answer 1

Another (perhaps easier to understand) regexp replacement that will do the trick:

var input = /* whatever */;
input = input.replace(/ +/g, ' ');

The regexp matches one or more spaces, so the .replace() call replaces every single or repeated space with a single space.

Answer 2

var str = "    This    should  become   something          else   too . "
$.trim(str).replace(/\s(?=\s)/g,'')

This uses lookahead to replace multiple spaces with a single space.

Answer 3

jsFiddle Example

"    This    should  become   something          else   too . ".replace(/[\s\t]+/g,' ');

Answer 4

var string = "    This    should  become   something          else   too . ";
string = string.replace(/\s+/g, " ");

This code replaces a consecutive set of whitespace characters (\s+) by a single white space. Note that a white-space character also includes tab and newlines. Replace \s by a space if you only want to replace spaces.

If you also want to remove the whitespace at the beginning and end, include:

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

This line removes all white-space characters at the beginning (^) and end ($). The g at the end of the RegExp means: global, ie match and replace all occurences.

Answer 5

var str = 'some    value';
str.replace(/\s\s+/g, ' ');

Answer 6

var str = "    This    should  become   something          else   too . ";
str = str.replace(/ +(?= )/g,'');

Here's a working fiddle.