@SumitSharma009
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Dec 2, 2025 · 6 min read · If you've ever worked with Node.js, you’ve probably heard words like: Event loop Async programming Callbacks Promises Non-blocking I/O But what do these actually mean? More importantly… 👉 How does Node.js handle so many requests with just one...
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Nov 28, 2025 · 3 min read · Introduction If you’re learning JavaScript, you’ve probably heard this scary word: prototype. Most developers struggle with it (especially coming from class-based languages like Java or C++). But the truth is: Prototypes are simple once you understa...
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Nov 27, 2025 · 4 min read · Designing a clean and scalable REST API with Express.js doesn’t have to be complicated. In this guide, we’ll build a simple but production-ready Users API, understand clean project structure, proper status codes, and visualize the flow using wirefram...
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Sep 1, 2025 · 4 min read · Scalability is very important in backend development. It means the application should be able to handle more users or data smoothly. If you build your backend the wrong way, you may face slow performance, difficult maintenance, and security problems,...
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Aug 26, 2025 · 6 min read · JSON Web Token (JWT) JWT stands for JSON Web Token. It is a compact, URL-safe means of representing claims to be transferred between two parties. It is used to securely transmit information between parties in a JSON format. JWTs can be used to author...
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