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Mayank MahajanOct 18 · 14 min read

Why Do Operating Systems Exist? What If There Was No OS?

Imagine buying a computer with a powerful CPU, 16 GB of RAM, an SSD, and a dedicated GPU. You install TikTok to watch videos. Then you install PUBG to play a game. You click PUBG while TikTok is still

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Loknath PatelOct 18 · 8 min read

How to Call an API with JavaScript fetch() and Handle Errors Properly

Most fetch() tutorials only show the happy path. The bug that actually catches beginners is a different one: fetch() does not throw an error when a server responds with a 404 or 500. Your code just ke

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Roshan ChaturvediOct 5 · 20 min read

iOS Application Development From Scratch: A Beginner's Honest Map

Most people remember the first time an app they wrote ran on a real phone. It might have been a counter that went up by one, or a greeting that used their own name, and yet the feeling was bigger than

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Dilesh ZingareSep 10 · 2 min read

Slowing Things Down: What CS50P’s "Playback Speed" Teaches Us About Clear Tech Communication

Welcome back to my new series of "Cracking CS50P: A DevAdvocate's Python Guide", today we are going to dive into how I tackled the second problem in Problem Set 0: "Playback Speed" (playback.py). If y

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Jaydeep KanzariyaAug 31 · 12 min read

A React re-render doesn't touch the DOM — here's what it does

items.push(newItem); setItems(items); The array is longer. The screen is not. No error, no warning, no failed network request — the UI keeps showing the old list. Almost everyone learning React write

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Mahbuba SultanaAug 1 · 3 min read

The Little Flower That Brought Me Back to Coding

I never thought a small design idea would bring me back to coding. Before this moment, I had already tried stepping into programming. A relative first introduced me to it, and like many beginners, I s

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Puja JorwarJul 4 · 6 min read

DevLog #6: Session Management in Java: HttpSession vs. Cookies

In DevLog #5, we looked at client-side redirection using response.sendRedirect(). We discovered a major problem: since redirection triggers a brand-new HTTP request from the browser, the original requ

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Puja JorwarJul 3 · 5 min read

DevLog #2: Handling Request Parameters & Creating Your First Interactive Servlet

In our first DevLog, we successfully configured our local server environment using Eclipse and Apache Tomcat 9.0. We verified that our pipeline worked by running a simple, hardcoded "Hello World" serv

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Silent ScribeJul 4 · 4 min read

From Study Hours to Scores: How Linear Regression Predicts the Future

Imagine you're a parent trying to guess how many marks your child might score based on how many hours they study. You can't know the exact number, but you can make a smart, data-driven estimate — and

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Puja JorwarJul 1 · 8 min read

DevLog #1: The Honest Guide to Java Servlets & Tomcat 9.0 (And How to Conquer the Setup)

You know Java. You can write classes, traverse binary trees, and design beautiful object-oriented systems. But how do you take that Java code and put it on the web? How does a Java program listen to a

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Why Do Operating Systems Exist? What If There Was No OS?

How to Call an API with JavaScript fetch() and Handle Errors Properly

iOS Application Development From Scratch: A Beginner's Honest Map

Slowing Things Down: What CS50P’s "Playback Speed" Teaches Us About Clear Tech Communication

A React re-render doesn't touch the DOM — here's what it does

The Little Flower That Brought Me Back to Coding

DevLog #6: Session Management in Java: HttpSession vs. Cookies

DevLog #2: Handling Request Parameters & Creating Your First Interactive Servlet

From Study Hours to Scores: How Linear Regression Predicts the Future

DevLog #1: The Honest Guide to Java Servlets & Tomcat 9.0 (And How to Conquer the Setup)