Regular Expressions 101

Length of email address is an industry standard, lady "The format of email addresses is local-part@domain where the local part may be up to 64 characters long and the domain may have a maximum of 255 characters[2]—but the maximum of 256-character length of a forward or reverse path restricts the ent...

extract url such as http, https:, ftp and mailto from a string

For Month Verification Works for January / Jan / Jan.

Work in progress

Useful for phone number extraction

Matches all subdomains (specifically in group 2) excluding www

With this regex, is possible to strip som parts of response

Valid: 0.00 123.12 123,123,123.12 123,123,123,123.00 ...

Valid: +100.00% -100.00% +2.00% -22.00% +2.99%...

valid: benji_yang@basic.cn benji.yang@roolbox.com benji-yang@gmail.org invalid:...

This regex matches up with the word rape, even if accent marks are used.

Allowed URL patterns for Meetup.com events

Matches a decimal, but only allows for leading/tailing Zeros if they are the first digit to precede or follow the decimal point