Regex to add a space after each comma in Javascript

Question

I have a string that is made up of a list of numbers, seperated by commas. How would I add a space after each comma using Regex?

Answer 1

As I came here and did not find a good generic solution, here is how I did it:

"1,2, 3,4,5".replace(/,([^\s])/g, ", $1");

This replaces comma followed by anything but a space, line feed, tab... by a comma followed by a space.

So the regular expression is:

,([^\s])

and replaced by

, $1