Validates a date with ISO 8601 format. Source: http://www.pelagodesign.com/blog/2009/05/20/iso-8601-date-validation-that-doesnt-suck/

It correctly handles simple values, empty values, and quoted values with commas inside.

Can grab all kinds of valid twitch URLs.

Matches all valid, current UK Postcodes, including Girobank and non-geographic postcodes, irrespective of whether they contain a space. It does not include overseas territories. Adapted from the BS7666 postcode rules at http://www.cabinetoffice.gov.uk/govtalk/schemasstandards/e-gif/datastandards/add...

Select a character (or string) ingnoring if that element is inside the HTML tags. Useful to apply html tags using replace.

little matcher for french phone number in international format (example: +33231348228)

white space before punctuations, outside script and code tags

Valid 0.0.0.0 1.1.1.1 101.101.101.101 255.255.255.255 156.0.1.10...

This is not supported in Javascript! Works well for php, python. Examples: +91-8800119719, 08800119719, 8800119719, +918800119719 etc.

IOS3166 Country Code Identification REGEX

Validate IPv4 addresses using PCRE's recursion patterns. A shorter but less efficient alternative to https://regex101.com/r/wZ6oY5/1

Useful to work with GoogleMap API.

Regular expression for password validation Rules: 8-120 chars no spaces must contain at least one a-z char must contain at least one A-Z char...