Pattern
/@[A-Za-z0-9_]{1,30}/Sample text
cc @alice and @bob_01 email@domain.comTest this pattern in the editor
Mentions
@handles used in social text.
Related patterns
Email addresses
Capture local and domain parts from common email shapes.
24-hour time
Match HH:MM or HH:MM:SS clock times.
Usernames
3–16 chars: letter start, then letters, digits, underscore.
URL slugs
kebab-case slugs for routes and CMS paths.
US ZIP codes
5-digit ZIP or ZIP+4.
Russian postal codes
Six-digit Russian postal index.