The program will help you to try your regular expression format. You may download this repository, by executing:
git clone RyannKim327/Regular-Expression-Tester.git
But still, I won't allow someone to sell the codes we created, even you modify it.
It is commonly executed between two / like the code below
let regex = /([\w\W]+)/gi
The g represents as global and i for case insensitive. The program uses case insensitive, for then to easily ecxecuted the progrram. I also added the copier balow for Javascript users.