How to remove double space character with regexp?

Question

Input:

". . . . ." 

Expected Result:

 ". . . . ." 

Answer 1

 text = text.replace(/\s{2,}/g, ' '); 

• \s will accept all spaces, including newlines, so you can change this to / {2,}/g .
• {2,} takes two or more. Unlike \s+ , this does not replace one space with one space. (a bit of optimization, but usually it makes a difference).
• Finally, the g flag is required in JavaScript, or it will only change the first block of spaces, not all of them.

Answer 2

try

 result = str.replace(/^\s+|\s+$/g,'').replace(/\s+/g,' '); 

Answer 3

 var str="this is some text with lots of spaces!"; var result =str.replace(/\s+/," "); 

Answer 4

in PCRE:

 s/\s+/ /g 

in javascript:

 text = text.replace(/\s+/g, " ");