This regular expression can be used to find tags and hashtags in a string. It assumes that a username can contain both underscores and points (.) and that hashtags can only contain letters

Validates SIP(Session Initiation Protocol) Addresses

With format dd/MM/yyyy

Someone on IRC posted the following site: https://mathiasbynens.be/demo/url-regex which challgenged me to write a decent regex to match valid URLs in that list. This regex works in both pcre and javascript (you'll have to replace the pcre-specific syntax to make it work in JS). Don't actually use t...

Works with 2015-04-03T13:56:24.0+00:00 (official) format, and 2015-04-03T13:56:24+0000 (PHP) format, too

are both strings matching, I wnat only the second one to match

Get extension of an file.

regex for phone numbers in Israel

Regexp for kz website mask "+7(999) 999-99-99"

Matches sentences, but skips over abreviations

JS Regex Lazy quantifier

Supports new top level domains, such as .plumbers .blackfriday