Replacing space and comma from a string using regex

JavaScript
1

I may get a string like this:

23,45,567
23,45 56 7

I want it to free of all the commas and spaces. So, I tried to use the following codes:

“23,45,567”.replace(‘/[1]$/g’, ‘’)

“23,45,567”.replace(‘/[2]+$/g’, ‘’)

“23,45,567”.replace(‘/^\s,$/g’, ‘’)

And many more like this. But none of it is working. Any help regarding this matter will be helpful.

Thank you

  1. \s, ↩︎

  2. \s, ↩︎

2

Your regex doesn’t work because first, you’ve put the regex into quotes, so you’re checking if your string contains this substring: '/^[\s,]$/g'. It’s not evaluated as a regex anymore, but as a string literal.

Also, you use ^ and $, which mean that the string must start with whatever comes after ^ and must end with whatever comes before $. If you just remove those, your regex works fine:

str.replace(/[\s,]/g, '')

3

Thank You @jsdisco for your quick reply and solution to my problem.

4

Happy to help, regex can be horribly confusing. By the way, if you really just want to remove two characters (space and comma), I think I’d just chain two lovely brand new .replaceAll() methods, because it’s easier to read (and write):
str.replaceAll(',', '').replaceAll(' ', '')