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KSKanishka Shashihtml-dev09.hashnode.dev3d ago · 11 min read

Kafka Explained Like You're 5: Events, Partitions, and Consumer Groups

Introduction How does a large application process millions of events every day? Imagine a food delivery app during dinner time. Thousands of customers are placing orders, restaurants are accepting the

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KSKanishka Shashihtml-dev09.hashnode.dev3d ago · 12 min read

How React Works Internally: Virtual DOM, Reconciliation, and Rendering

Introduction What actually happens when we call setState? You click a button. setCount(count + 1); The number on the screen changes instantly. But what happens behind the scenes? Does React rebuild

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KSKanishka Shashinodej.hashnode.dev6d ago · 11 min read

State Management in React: Context API, Prop Drilling, React.memo, useMemo, and useCallback

Why Does Managing State Become Difficult as Applications Grow? Imagine you're building a simple React application. It starts with just a few components—a login page, a navigation bar, and a dashboard.

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KSKanishka Shashinodej.hashnode.dev6d ago · 11 min read

Building Scalable Systems: Caching, Rate Limiting, and Observability

What Happens When Your Application Suddenly Gets One Million Users? Imagine this. You launch a new product after months of development. Marketing campaigns go live, influencers start talking about it,

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KSKanishka Shashihtml-dev09.hashnode.devJul 2 · 16 min read

Mastering TypeScript: Interfaces, Generics, and Unions Explained

If JavaScript Works, Why Was TypeScript Created? Here's a question worth sitting with: JavaScript runs the entire web. It powers billion-dollar companies, complex applications, and everything in betwe

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KSKanishka Shashinodej.hashnode.devJul 2 · 8 min read

Securing Apps: Password Hashing, RBAC, OAuth, and OpenID Connect

Security is one of those things that's easy to bolt on badly and hard to retrofit well. Most applications end up needing to answer four separate questions: How do we store credentials safely? How do w

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ASAatish Singhaatishsinghdev.hashnode.devJul 1 · 7 min read

How ChatGPT Understands Your Questions?

1. What is Generative AI? Before diving deep into Large Language Models (LLMs), let's first understand what Generative AI is. Generative AI (GenAI) is a type of artificial intelligence that can genera

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SShaytoddlerstech.hashnode.devJul 1 · 12 min read

How ChatGPT Understands Your Questions?

most of have you already used chatGPT but have you ever wondered how it works ? does it seems magical to you . Well every magic involves a trick and when it is exposed the magic no longer creates that

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AAAgam aroraagamx.hashnode.devJul 1 · 6 min read

How ChatGPT Understands Your Questions: Reading Google's "Attention Is All You Need" Paper

Have you ever wondered what actually happens between the moment you type a sentence into ChatGPT and the moment it talks back? This guide breaks down the core concepts—tokenization, embeddings, positi

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SSSarthak Singhsarthak-singh.hashnode.devJun 30 · 5 min read

ChatGPT Is Not a Black Box Anymore: The Journey from Input Tokens to Output Responses

What is an LLM? An LLM or Large Language Model is an AI built on neural networks but instead of bombarding technical jargons let us understand about LLM with an analogy. When somebody asks you "how ar