allows email, text and numbers in latin and cyrillic alaphbets.but prevents special charcters: Hello, example@mail.com Меня зовут Боб

Regex for validating us telephone number as per freecodecamp testcases-

matches href, title, innerhtml

Tests UK Postcode with alternative for Postcode Prefix

allows white spaces, -, Umlaut and ß

This simple regex checks if a user has input correct YYYY format.

This regex checks if a user has input 4 digit year integer.

ContentPlace Xml Tag

valida fechas de 19## a 20##, en formato yyyy-MM-dd

get lowercase letters

Covers Latin-1 Supplement Latin Extended-A Latin Extended-B Greek and Coptic

This is for the validation of number

Regex to qoute a JSON-string

Regex to quote keys to parse a string of relaxed JSON. Rules: No ':', '"' or newline in keys allowed