Skip to content

Instantly share code, notes, and snippets.

@yusupova

yusupova/regex-for-username

Last active April 6, 2017 23:12
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save yusupova/2945b25412c4fc5b62505be91ee30fe7 to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save yusupova/2945b25412c4fc5b62505be91ee30fe7 to your computer and use it in GitHub Desktop.
Download ZIP
Regex for username
Raw
regex-for-username
^[\w]([A-Za-z0-9]|(\.)(?![._])|(_(?!\.))){2,28}([A-Za-z0-9]|(_(?!\.)))$
[allow numbers, letters, '.' , '_']
[3 - 30 characters]
[cant start with '.', can't have 2 dots one following another]
Examples:
lol.name [ok]
lol name [not ok]
lol,name [not ok ]
lol890123lol901234567890 [ok]
reeeeeeeeeeeeeeeeeeeeeeeeeeeeee [not ok]
ree..d [not ok]
lol. [not ok]
ree_.d [not ok]
ree.__d [not ok]
__lmao__ [ok]
lol_get.rekt_ [ok]
/^_+$/
[check if string doesnt consist only of underscores -_-]
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment