Upcast is a low-level JavaScript type checking and casting library

Another biased type checking solution for Javascript

A simple, beautiful, and embeddable JavaScript Markdown editor that easy to use. Features include autosaving and spell checking.

Verify email address checking MX records, and SMTP connection.

Eslint plugin checking architecture boundaries between elements

Exhaustiveness checking in TypeScript

Jest watch plugin for checking changes since master

Collection checking checksum operations in shellscript.

JSON-Extends; JSON Schema type checking library

useEffect hook with injected lifecycle checking method

Environment checking service

A simple, beautiful, and embeddable JavaScript Markdown editor. Features autosaving and spell checking.

Library for type checking.

ES2015 module for type checking DOM NodeLists

type checking

React Native module for checking App version and prompting user.

ES2015 module for type checking DOM Nodes

Set of various predicates for type checking, assertions, filtering etc

A tool to enable the checking, inserting and removal of licenses

Extends Chai with an assertion for deeply matching objects (i.e. subset equality checking)