What is JavaScript? — a practical guide to What is JavaScript with clear examples you can reuse in real projects.
JavaScript Tutorial Series (2/101). Prefer one article? Read the complete JavaScript tutorial.
Short description
JavaScript runs in browsers and on servers (Node.js). It is multi-paradigm: procedural, object-oriented, and functional styles all appear in real code.
Where JS runs
Browsers (DOM, Fetch)
Node.js / Deno / Bun
Embedded runtimes