Regular Expressions 101

Community Patterns

10

entity

Python
no description available
Submitted by anonymous - 8 years ago

Username with "_" "-"

12

Regular Expression
ECMAScript (JavaScript)

/
^(?=.{3,20}$)(?![_.-])(?!.*[_.-]{2})[a-zA-Z0-9_-]+([^._-])$
/

Description

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Submitted by Gianvy - 8 years ago