Replacing spaces with regex in javascript

Question

I have a problem to find a regular expression to replace all spaces in given string:

var test = '1 2 3 4';
alert(test.replace(/\s/, ''));

The first space is replaced correctly but I want to get the string without any spaces. In the example above I'm expecting "1234".

Add `g` at the end. `test.replace(/\s/g, '')` – putvande Nov 20 '13 at 19:39 — putvande, Nov 20 '13 at 19:39

score 1 · Accepted Answer · answered Nov 20 '13 at 19:41

1

You have to add a g flag for global at the end of your Regular Expression:

var test = '1 2 3 4';
alert(test.replace(/\s/g, ''));

answered Nov 20 '13 at 19:41

putvande

score 0 · Answer 2 · answered Nov 20 '13 at 19:40

0

alert(test.replace(/\s/g, ''));

"g" for "global"

answered Nov 20 '13 at 19:40

user2196728

Give an explaination, not just an answer – epascarello Nov 20 '13 at 19:41
Edited : g is for global : it will replace in the whole string, if not, it will just replace the first occurence – user2196728 Nov 20 '13 at 19:43
Ah ok. Right, I forgot the flags. Thanks a lot. – altralaser Nov 21 '13 at 00:55
mark as answered please ;) – user2196728 Nov 21 '13 at 00:59

2 Answers2