Strong Dynamically Typed Object Modeling for JavaScript

MOVED TO GITLAB

Runtime type checking for JS with Hindley Milner signatures

⚡️ Runtime type-checker for JavaScript

Typeis. it's the smart and simple javaScript type checker

A JavaScript type checking/casting library

Argument validation library based on JSDOC syntax

Isomorphic, functional type-checking for Javascript

Another biased type checking solution for Javascript

Babel macro that automatically generates type guards for a given type (WIP)

A minimalist runtime type checking utility for duck typing

A zero-dependency utility for retrieving `Object.prototype.toString` tags. It is designed to handle hostile or exotic objects that cause native implementations to throw exceptions.

❔ A simple type checking library for Node.js

🧩 Plain JavaScript objects with runtime type guarantees

A Math expression parser and evaluator with support of runtime data-type checking written in native JS.

Higher-order contracts and runtime schema checking for JavaScript

Validate Vuex Commits with Joi, Superstruct & Yup Schema.

Check if a value is an async function, from ES2017 specification. Supports babel.

Lightweight replacement for the ow validation library meant for browser usage.

Tiny javascript library that you can extend with your own type checking methods.