Node.jsBackend & Data

Node.js runs JavaScript on a server instead of in the browser. One process can hold on to many things at once — incoming requests, database lookups, reading files — without getting in a knot, which makes it a natural fit for websites, services, queues and build tools. It comes with npm, the largest library registry in the world, and newer versions run TypeScript directly. For heavy number crunching I'd still rather use Python.