regex for username
match a username
^[a-z0-9_-]{3,15}$
Regex Flags
global match
?
ignore case
?
multiline
?
dotAll
?
unicode
?
sticky
?
lorem
ipsum
gr3at
a
ab
abcd
abcde
john doe
johnny
abcdefghijklmnopqrst
A username is a unique identifier given to accounts in websites and social media
Alphanumeric string that may include _ and - having a length of 3 to 16 characters.
Cheatsheet
| expr | usage |
|---|---|
/[a-zA-Z0-9]/ | matches all lowercase, uppercase letters and numbers |
/(hello){1,3}/ | matches "hello" that occur between 1 and 3 times (inclusive) |
/^/ | matches beginning of a line |
/$/ | matches end of a line |
iHateRegex
by
geon