How can I make the special character check also match spaces?

Question

https://code.sololearn.com/WhH3Q09RHeQj/?ref=app

I need the special characters check to include spaces in the counter. How can I achieve this?

Answer 1

txt.match(/[^a-z0-9]/gi)

Answer 2

Thanks Calviղ

Regular Expressions are difficult to learn for me. Lol