The Node.js Event Loop ExplainedAcross the Internet, every modern web application handles hundreds or thousands of requests at the same time. But behind the scenes, Node.js runs on a single thread. How does it manage heavy workloadsApr 29, 2026·6 min read·19
Sessions vs JWT vs Cookies: Understanding Authentication ApproachesAcross the web, every time a user logs into a website, the server needs a way to remember who they are. But computers do not remember people by name. They need a reliable method to identify users acroApr 28, 2026·6 min read·3
URL Parameters vs Query Strings in Express.jsEvery web application relies on URLs to navigate, fetch data, and trigger actions. But not all URLs are structured the same way. Some carry data directly in the path, while others append information aApr 27, 2026·6 min read·1
What is Middleware in Express and How It WorksIf you’ve ever written an Express server, you’ve already used middleware. That app.use(express.json()) line at the top of your file? Middleware. That function checking if a user is logged in before acApr 27, 2026·6 min read·2
Async Code in Node.js: Callbacks and PromisesWhen you start learning Node.js, one concept appears everywhere: asynchronous code. If you come from a background where programs run line by line, this can feel confusing. Why does Node.js handle operApr 26, 2026·6 min read·2
How Node.js Handles Multiple Requests with a Single ThreadWhen you first hear that Node.js is “single-threaded,” it sounds like a major limitation. How can a single thread handle thousands of simultaneous users without freezing? The secret lies in Node.js’s Apr 26, 2026·6 min read·13
What is Node.js? JavaScript on the Server ExplainedIf you started learning web development a decade ago, you were probably told one golden rule: JavaScript lives in the browser. It was the language of button clicks, form validations, and animated dropApr 26, 2026·7 min read·10
