midwayjs/logger

2KB immutable date time library alternative to Moment.js with the same modern API

TypeScript definitions for jest

TypeScript definitions for node

Run scripts that set and use environment variables across platforms

fs-extra contains methods that aren't included in the vanilla Node.js fs package. Such as recursive mkdir, copy, and remove.

Delightful JavaScript Testing.

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

TypeScript execution environment and REPL for node.js, with source map support

TypeScript is a language for application scale JavaScript development

Deterministic and safely JSON.stringify to quickly serialize JavaScript objects

Web workers & worker threads as simple as a function call