Basic file type checks based on a few header bytes

Guard plugin for Flow type checks

Decorator style assertions and type check library for Contract programming.

Allows for easy YAML parsing and type checking, as well as generators

The strongtyping gem is a Ruby library that provides type checking and method overloading.

tspec can check type of methods arguments and return value.

tinytyping is simply type check.

TStruct is type checked Struct

Guard plugin for the Sorbet Ruby type checker

rails-tc bundles everything required to properly setup type checking with sorbet in rails projects

Pronto runner for flow, a static type checker for javascript.

Experimental type checker

Simple runtime type checking for Ruby method signatures

Install gsl, statistics2 and provides a C extension to optimize the following methods * Vector#frecuencies * Vector#set_valid_data * Vector#check_type * Dataset#case_as_hash * Dataset#case_as_array * Bivariate::Tetrachoric

Lazy static type checking

Reliable contract definition, data validation, and type checking for Ruby.

RubyLess is an interpreter for "safe ruby". The idea is to transform some "unsafe" ruby code into safe, type checked ruby, eventually rewriting some variables or methods.

The fastest type checking gem

Super basic type checking functions in ruby.

Iz provides an API for type checking objects.