JavaScript vs Node.js — 17/55 in the Node.js series. Full playlist companion: Node.js complete course on YouTube. Prefer one article? Read the complete Node.js tutorial.
Short description
JavaScript is the language. Node.js is a runtime that runs that language on the server with different global APIs than the browser.
Key differences
JavaScript (browser): DOM, fetch, window, localStorage
Node.js: fs, http, process, Buffer, path, no DOM
Same language: variables, functions, promises, classes