HDHitesh Dhayalinjavascript-hiteshdhayal.hashnode.dev·May 10 · 7 min readUnderstanding Object-Oriented Programming in JavaScriptUnderstanding Object-Oriented Programming in JavaScript As applications grow larger, organizing code becomes more important. Imagine writing thousands of lines of code without structure: Data becomes00
HDHitesh Dhayalinjavascript-hiteshdhayal.hashnode.dev·May 10 · 7 min readBlocking vs Non-Blocking Code in Node.jsNode.js is famous for handling thousands of simultaneous connections on a single thread. That reputation isn't magic—it's the direct result of choosing non-blocking code over blocking code. Understand00
HDHitesh Dhayalinjavascript-hiteshdhayal.hashnode.dev·May 10 · 9 min readWhy Node.js is Perfect for Building Fast Web ApplicationsIn today's digital landscape, speed isn't just a feature—it's the foundation of user experience. When a web application takes too long to respond, users leave. When a server chokes under concurrent lo00
HDHitesh Dhayalinjavascript-hiteshdhayal.hashnode.dev·May 10 · 7 min readJavaScript Promises Explained for BeginnersModern JavaScript applications constantly perform tasks that take time. Examples include: Fetching API data Reading files Uploading images Database operations Timers These are called: Asynchron00
HDHitesh Dhayalinjavascript-hiteshdhayal.hashnode.dev·May 10 · 7 min readHandling File Uploads in Express with Multer Modern web applications constantly deal with file uploads. Examples include: Profile pictures PDFs Documents Videos Product images Whenever users upload files to a server, backend applications 00
HDHitesh Dhayalinbasicsofnetworking.hashnode.dev·May 10 · 8 min readHow a Browser Works: A Beginner-Friendly Guide to Browser InternalsEvery day, millions of people open browsers and visit websites without thinking much about what happens behind the scenes. You type: google.com press Enter, and suddenly: Text appears Images load 00
HDHitesh Dhayalinjavascript-hiteshdhayal.hashnode.dev·May 10 · 8 min readHow DNS Resolution WorksWhenever you open a website like: google.com your computer somehow finds the correct server among millions of devices connected to the internet. But how? Your browser understands IP addresses like: 100
HDHitesh Dhayalinjavascript-hiteshdhayal.hashnode.dev·May 10 · 7 min readSynchronous vs Asynchronous JavaScript One of the most important concepts in JavaScript is understanding how code executes. Sometimes code runs: Step-by-step in order and sometimes: Tasks happen in the background while other code contin00
HDHitesh Dhayalinjavascript-hiteshdhayal.hashnode.dev·May 10 · 11 min readREST API Design Made Simple with Express.jsBuilding APIs is one of the most common tasks in modern web development. Whether you're creating a mobile app backend, a single-page application, or a microservice, you need a reliable way for differe00
HDHitesh Dhayalinjavascript-hiteshdhayal.hashnode.dev·May 10 · 8 min readJWT Authentication in Node.js Explained SimplyModern applications need a way to identify users securely. For example: Social media apps Banking websites E-commerce platforms Admin dashboards all need authentication systems. Without authenti00
