What about a regular expression that checks whether a given string starts with a valid e-mail address? Let's state the following format of an e-mail address:
- its first part can contain from 6 to 30 characters. These characters can be lowercase Latin letters, digits, hyphens
-, the dot characters., the equals sign=or underscores_ - the second part that immediately follows the first one is always
@hyperskill.org
Put your regex in the template variable.
Tip: Do not forget to escape some characters in your regex.