Overview
Node.js is a JavaScript runtime built on Chrome's V8 engine. It enables building fast, scalable server-side applications using JavaScript.
Why Node.js?
- JavaScript Everywhere: Use JavaScript for frontend and backend.
- Non-Blocking I/O: Handle many concurrent connections.
- NPM Ecosystem: Millions of packages available.
- Event-Driven: Build scalable applications.
- Fast Execution: V8 engine provides high performance.
Key Features
Asynchronous
Non-blocking async/await pattern.
Streams
Handle large data efficiently.
Modules
Modular code organization.
Clusters
Multi-process clustering.
File System
Built-in file operations.
Networking
Built-in HTTP and networking.
Use Cases & Applications
Node.js is used for:
- RESTful APIs
- Real-time applications
- Streaming services
- IoT applications
- Microservices
- Command-line tools
- Build tools
- Single page app backends
My Expertise
Experience Level
75% — Intermediate-Advanced — 4+ years experience
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