Username Regular Expression

A regular expression that matches all valid usernames (unique identifier).

• 4-16 characters {4,16}
• Has a dash
• Has an underscore

/^[a-zA-Z0-9_-]{4,16}$/

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Username Examples:

• RegexPattern
• Regex-Pattern
• Regex_Pattern

See Also:

• Strong Password Regular Expression
• Name Validation Regular Expression
• Regular Expression For Email Validation