Type checking for .eslintrc.json

Type checking for package.json

Pipedream platform globals (typing and runtime type checking)

Minimal assert with type checking

Generate types from ESLint rule schemas automatically, with auto-completion and type-checking for rule options.

A simple type-checking utility library.

Support [Flow static type checking](https://flow.org/) in [Vite](https://vitejs.dev/)

Runtime type checking for react-router props

a fork of pyright with various type checking improvements, pylance features and more.

Type checking for React components

Another biased type checking solution for Javascript

Typescript plugin that adds type checking and code completion to lit-html

Library for type checking.

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

ES2015 module for type checking DOM NodeLists

JSON-Extends; JSON Schema type checking library

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

ES2015 module for type checking DOM Nodes

Better type checking for JavaScript.

Helper methods/classes for data type checking/validation/guarding/error handling