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Node.js:
What is Node.js and what is it used for?
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What is Node.js and what is it used for?
Node.js
— JavaScript runtime built on Chrome's V8 engine.
Key features:
JavaScript runtime (server-side).
Built on V8 engine.
Event-driven, non-blocking I/O.
Single-threaded event loop.
npm ecosystem.
Main areas of use:
Web servers (Express, Fastify).
APIs and microservices.
Real-time applications (WebSockets).
CLI tools.
Build tools (Webpack, Gulp).
IoT applications.
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