Regular Expressions 101

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Library entries

3
javascript

IPv4 validation

validate an IP v4
Submitted by harimambura - 6 years ago
3
javascript

email

no description available
Submitted by anonymous - 6 years ago
3
python

Capture Query Strings

A solution for capture query params.
Submitted by Rafael Laurindo - 6 years ago
3
python

Email

Python
Submitted by anonymous - 6 years ago
4
javascript

Repeated words (JS)

no description available
Submitted by paconaranjo - 8 years ago
4
javascript

url matching

supports all major protocols
Submitted by matheus silva - 8 years ago
4
javascript

match brackets outside quotes

no description available
Submitted by Jerry - 7 years ago

IP Address validator

Vote

35

Regular Expression
javascript

/
^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$
/

Description

Loading markdown...
Submitted by krzysp - 7 years ago