Pick only the alphabets and not the description from a given string-CodePudding

I am a newbie to Regex and require help with the following:

I have strings like - B - Comp-Band Disk,C - Check Oncoming Private,D - DL Procurement Outer. Is there a Regex expression which I could use to change string to B,C,D?

CodePudding user response：

You can use

(?:(?:^|,)(\w))

Regex Explanation

(?: Non-capturing group
- (?: Non-capturing group
  - ^|, Match start of the string or ,
- ) Close non-capturing group
- ( Capturing group
  - \w Match any word character
- ) Close group
) Close non-capturing group

See the demo