JavaScript test spies, stubs and mocks for ES6.

Utilities for testing Ink apps

Delightful JavaScript Testing.

BDD/TDD assertion library for node.js and the browser. Test framework agnostic.

A Jest transformer with source map support that lets you use Jest to test projects written in TypeScript

Fake XHR and server

CLI for Jasmine, a simple JavaScript testing framework for browsers and Node

JavaScript/TypeScript linter (ESLint wrapper) with great defaults

Fake JavaScript timers

Prettier is an opinionated code formatter

Rollup plugin to minify generated bundle

Functional approach to compose your webpack config.

Yet another JS code coverage tool that computes statement, line, function and branch coverage with module loader hooks to transparently add coverage when running tests. Supports all JS coverage use cases including unit tests, server side functional tests

Sinon.JS assertions for referee

Full featured Promises/A+ implementation with exceptionally good performance

Seamless integration between Rollup and Istanbul.

Vercel Sandbox is an ephemeral compute primitive designed to safely run untrusted or user-generated code on Vercel. It supports dynamic, real-time workloads for AI agents, code generation, and developer experimentation.

Creates ES6 ./index.js file in target directories that imports and exports all sibling files and directories.

Lint files staged by git