Remove spaces from javascript string but not all spaces

Question

I have a string

str = 'first last1; first last2; first Last3;';

I am looking to remove the spaces only after the semicolons.

I have tried using

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

and

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

but it is not working.

any help would be appreciated.

How about str.replace(/;\s+/g, ';'); ? Concatenating a string with a regular expression won't produce the result you might expect. — Felix Kling
– Felix Kling, Commented Oct 13, 2014 at 17:30

PeterKA · Accepted Answer · 2014-10-13 17:38:46Z

1

str = 'first last1; first last2; first Last3;';
str = str.replace(/;\s+/g, ';');
alert( str );

You were quite close:

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

answered Oct 13, 2014 at 17:30

PeterKA

24.7k5 gold badges28 silver badges52 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

it is better: str = str.replace(/;\s+/g, ';');