Regular Expressions 101

Sponsors

Library entries

105
javascript

trim

trim string
Submitted by fp - 10 years ago
35
javascript

IP Address validator

Validates IPv4 IP Address
Submitted by krzysp - 8 years ago
31
javascript

Email address (most used)

Email address, most used cases
Submitted by Jago - 8 years ago
16
javascript

http url regex

general purpose HTTP URL regex
Submitted by Miguel Castillo @manchagnu - 8 years ago
15
javascript

Hashtag

The secret of the Twitterverse.
Submitted by Joogl - 8 years ago
15
javascript

Email (RFC2822)

Email address compliant with RFC2822
Submitted by Jago - 8 years ago
13
javascript

us postal/zip

no description available
Submitted by jay johnson - 9 years ago
12
javascript

Username with "_" "-"

no description available
Submitted by Gianvy - 7 years ago
12
javascript

US Currency Format

no description available
Submitted by anonymous - 7 years ago

ISO 8601:2004E Duration

Vote

0

Regular Expression
dotnet

"
^P(?!$)(?:(?<years>\d+(?:\.\d+)?)Y)?(?:(?<months>\d+(?:\.\d+)?)M)?(?:(?<weeks>\d+(?:\.\d+)?)W)?(?:(?<days>\d+(?:\.\d+)?)D)?(T(?=\d)(?:(?<hours>\d+(?:\.\d+)?)H)?(?:(?<minutes>\d+(?:\.\d+)?)M)?(?:(?<seconds>\d+(?:\.\d+)?)S)?)?$
"
gmx

Description

Loading markdown...
Submitted by Sakura Akeno Isayeki - 8 months ago