Regular Expressions 101

Library entries

106
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 - 9 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 - 8 years ago
12
javascript

US Currency Format

no description available
Submitted by anonymous - 7 years ago

html color match: transparent, #fff, #123456, rgb, rgba, hsl, hsla

Vote

11

Regular Expression
javascript

/
^(rgb\s*?\(\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?\))$|^(rgba\s*?\(\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(000|0?\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\s*?,\s*?(0|0\.\d*|1|1.0*)\s*?\))$|^(transparent)$|^(#([a-fA-F0-9]){3})$|^(#([a-fA-F0-9]){6}$)|(^hsl\s*?\(\s*?(000|0?\d{1,2}|[1-2]\d\d|3[0-5]\d|360)\s*?,\s*?(000|100|0?\d{2}|0?0?\d)%\s*?,\s*?(000|100|0?\d{2}|0?0?\d)%\s*?\)$)|(^hsla\s*?\(\s*?(000|0?\d{1,2}|[1-2]\d\d|3[0-5]\d|360)\s*?,\s*?(000|100|0?\d{2}|0?0?\d)%\s*?,\s*?(000|100|0?\d{2}|0?0?\d)%\s*?,\s*?(0|0\.\d*|1|1.0*)\s*?\)$)$
/

Description

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Submitted by grouch - 8 years ago