To validate email.

This RegEx is very specific but demonstrates a technique to find and modify HTML tags. Finds and tags that: Do not already have padding. Are complete (i.e. have a closing tag) Are not empty (nor contain only one tag)...

Recognize valid promQL label\values part of expression

[[plain wikilinks]] [[first tag]] [[meta on first tag]] [[first tag + meta + container]] [[first tag + meta + container + third tag]] [[forgot a bracket...

validate email

Validate Github URI

getting volume issue, item out of link as group 1,3,5; bepress url

aaa

This works in Google Tag Manager regex to exclude the Home Page by URL

Remove width & height tage from Youtube/Vimeo embed code Useful for implementing responsive design

Extract Content in SPAN tag

Tên Tiếng Việt

hmm

INC

/^(label=\")(.+)(" length.*)(\/>)/gm

This was put together so that O365 can match headers and move to Microsoft Junk-mail folder instead of using Mimecast User Hold Queue.

This i suggest match the sml structure. Use it wisely, I made it just for fun!

I think this is the regex that Twitch uses to determine what is a clickable link on chat.

- /^(?:[\+-]?\d{4}(?!\d{2}\b))(?:(-?)(?:(?:0[1-9]|1[0-2])(?:\1(?:[12]\d|0[1-9]|3[01]))?|W(?:[0-4]\d|5[0-2])(?:-?[1-7])?|(?:00[1-9]|0[1-9]\d|[12]\d{2}|3(?:[0-5]\d|6[1-6])))(?:T\s\d|2[0-3])(?:(:?)[0-5]\d)?|24\:?00)(?:[\.,]\d+(?!:))?)?(?:\2[0-5]\d(?:[\.,]\d+)?)?(?:[zZ]|(?:[\+-])(?:[01]\d|2[0-3]):?(?:[0...

/^(?:[\+-]?\d{4}(?!\d{2}\b))(?:(-?)(?:(?:0[1-9]|1[0-2])(?:\1(?:[12]\d|0[1-9]|3[01]))?|W(?:[0-4]\d|5[0-2])(?:-?[1-7])?|(?:00[1-9]|0[1-9]\d|[12]\d{2}|3(?:[0-5]\d|6[1-6])))(?:T\s\d|2[0-3])(?:(:?)[0-5]\d)?|24\:?00)(?:[\.,]\d+(?!:))?)?(?:\2[0-5]\d(?:[\.,]\d+)?)?(?:[zZ]|(?:[\+-])(?:[01]\d|2[0-3]):?(?:[0-5...