Group your checkboxes like grouped select via “grouped_collection_select” in Rails. This gem adds a new Formtastic input type “grouped_check_boxes”, that helps you group long lists of checkboxes.

A puppet-lint plugin to check if parameters in Classes and Defines has types declared.

Checks for valid content type of excel files.

A Ruby dialect that includes types in the language. Transpiles to Ruby and RBS by leveraging the ruby-next and irbs gems. Type checks with steep.

Gem to parse Facebook ID's from various Facebook URL types. The five link types are: Status, Photo, Video, Link, Checkin.

A Gem to get files Header, Footer, Type(via headers), create file checksum, check file checksum, Carving and ... .