Checking Packages

A smarter way to check Javascript types.

A simpler version of Facebook's invariant implementation from React

ko-typed provides observable extensions for restricting and converting observable values based on type

Easy way to type checking of javascript data collections

audrey-seed for creation of one line sign checking

An awesome library for type checking on the fly.

A small library I have used for years to provide efficient and consistent run-time argument validation. This is used during development, and can be disabled or easily removed durning the build stage prior to deployment. This is the first node port, howe

Dead-simple spell checking in CodeMirror.

ESLint shareable configuration from Conaclos

simple express-validator wrapper for easier work with validation error handling

A simple utility for checking JavaScript types.

Does existance checking for you.

Tiny type/argument validation library.

Robust and comprehensive type checking library for node and the browser

Intuitive type checking functions exposed globally

assertions for node and browser

Validate an email address according to RFCs 5321, 5322, and others

test if a value is a javascript primitive type

collection of utility functions support validation

Tiny and easy-to-use command-line arguments parser.