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

the Istanbul command line interface

Delightful JavaScript Testing.

A mocha reporter that supports Circle CI, via a combined jUnit and Spec reporter output.

Static analysis tool for JavaScript

ESLint rules for React Hooks

elegant & feature rich browser / node HTTP with a fluent API

The streaming build system.

Open stuff like URLs, files, executables. Cross-platform.

JavaScript/TypeScript linter (ESLint wrapper) with great defaults

Prettier is an opinionated code formatter

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

BDD style assertions for node and the browser.

Simplified HTTP request client.

test framework agnostic BDD-style assertions