how strip commas from string in Elixir?

Question

I wonder how to remove commas from given string. My try was:

st = "1,2,3"
String.strip(st, ?,)
#=> "1,2,3"

What am I doing wrong?

Answer 1

String.strip/2 only removes characters at the beginning and end of the string. I believe you're looking for String.replace/4. Use it like this:

String.replace("1,2,3", ",", "")