Type checking and DDD for JavaScript
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Provides tools for iterating over and manipulating GeoJSON objects.
All essential TypeScript types in one place
Performance testing companion for React and React Native
Small library to simplify working with Generators and Iterators in Javascript / Typescript
JavaScript HLS client using MediaSourceExtension
Babel plugin to ensure function declarations at the block level are block scoped
Checks whether a documentation description introduces any new information. ℹ️
[](https://github.com/styleguidist/react-docgen-typescript/actions/workflows/nodejs.yml)
AI SDK by Vercel - build apps like ChatGPT, Claude, Gemini, and more with a single interface for any model using the Vercel AI Gateway or go direct to OpenAI, Anthropic, Google, or any other model provider.
Minimal zero-dependency utilities for using JavaScript Iterables in all environments.
A Vite plugin to polyfill Node's Core Modules for browser environments.
Collection of easing functions in TypeScript
Extend native Error to create custom errors
ESLint React's ESLint plugin for debugging related rules.
The missing pseudo-standard library for fp-ts.
Turn JSX into React function calls in development
🌀 OpenAPI to TypeScript codegen. Production-grade SDKs, Zod schemas, TanStack Query hooks, and 20+ plugins. Used by Vercel, OpenCode, and PayPal.
Helper function to hoist variables
lezer-based JavaScript grammar
Read and parse a JSON file
Functional programming in TypeScript
A testing companion to firebase-functions.