Introduction to Node.js
📘 Node.js
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📅 Nov 05, 2025
⏱ Estimated reading time: 1 min
Node.js is an open-source, cross-platform JavaScript runtime environment that allows you to run JavaScript code outside the browser. It is built on Google Chrome’s V8 JavaScript engine.
Why Node.js?
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Uses JavaScript for both frontend and backend
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Fast & efficient (non-blocking, event-driven architecture)
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Ideal for scalable network applications
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Large ecosystem of libraries via npm
Key Features
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Asynchronous & non-blocking I/O
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Single-threaded but highly scalable
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Uses event-driven architecture
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Handles thousands of concurrent connections efficiently
Common Uses
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Web servers & APIs
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Real-time applications (chat apps, live updates)
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RESTful services
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Microservices
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Command-line tools
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