How to find special characters in a text

[Boban (Boban Stojmenovic)]

How to check any special characters in Text

I prefer to use Regex(Regular Expression) for stuff like this: [Screenshot_20200609-152942_Chrome] https://community.thunkable.com/t/regular-expression-extension/3657?u=kenn Just lowercase - pattern = [^a-z] lowercase Uppercase and space character - pattern = [^a-zA-Z ] Thanks @Kevinkun!