Parses countries list from https://countrycode.org/

Takes any valid CSS and minimizes it, removing comments and whitespace. Can be called with something like PHP's preg_replace() to dynamically minimize css files.

RegExp to match that user has entered at least 2-letters (including international letters) in a field

Not perfect, but better than none.

Extracts lines with i18 prefix from text

Local variable and function parameter names should comply with a naming convention

Based on http://www.regular-expressions.info/creditcard.html This example includes test strings. This only validates the pattern, and not whether the credit card number passes a checksum validation. See the Luhn algorithm for details https://en.wikipedia.org/wiki/Luhn_algorithm...

Switches the order of two functions in a parameter.

Given a number N represented by its unary form N(1), when RegEx doesn't match N(1), N is prime

don't use my older one

To convert the BizTalk schema output to one string

Matches words without external punctuation but with internal punctuation.

stackoverflow question