--- title: "Haradhan Das (@haradhan459) | Hashnode" description: "Coding saves lives. Read the latest articles by Haradhan Das on Hashnode." url: "https://hashnode.com/@haradhan459" --- @haradhan459 # Haradhan Das @haradhan459 路 India 路 Joined January 2026 Coding saves lives ### [Blocking vs Non-Blocking Code in Node.js 鈿(https://nodejs-code-blocking-vs-non-blocking.hashnode.dev/blocking-vs-non-blocking-code?utm_source=hashnode&utm_medium=feed) Learn the difference between blocking and non-blocking code in Node.js with simple examples, real-world analogies, file handling scenarios, and beginner-friendly explanations. 4 min read 路 [nodejs-code-blocking-vs-non-blocking.hashnode.dev](https://nodejs-code-blocking-vs-non-blocking.hashnode.dev/blocking-vs-non-blocking-code?utm_source=hashnode&utm_medium=feed) [May 7](https://hashnode.com/posts/blocking-vs-non-blocking-code/69fce6549f93a850a40ac0f1) ### [URL Parameters vs Query Strings in Express.js 馃](https://url-parameters.hashnode.dev/url-parameters-vs-query-strings-in-express-js?utm_source=hashnode&utm_medium=feed) Learn the difference between URL parameters and query strings in Express.js with beginner-friendly examples, real-world analogies, and practical routing use cases. 4 min read 路 [url-parameters.hashnode.dev](https://url-parameters.hashnode.dev/url-parameters-vs-query-strings-in-express-js?utm_source=hashnode&utm_medium=feed) [May 7](https://hashnode.com/posts/url-parameters-vs-query-strings-in-express-js/69fcdcb89f93a850a4042061) ### [REST API Design Made Simple with Express.js 馃殌](https://rest-api-design-mode.hashnode.dev/rest-api-design-made-simple-with-express-js?utm_source=hashnode&utm_medium=feed) Learn REST API design with Express.js in a beginner-friendly way. Understand resources, HTTP methods, status codes, CRUD operations, and clean route design with simple examples. 5 min read 路 [rest-api-design-mode.hashnode.dev](https://rest-api-design-mode.hashnode.dev/rest-api-design-made-simple-with-express-js?utm_source=hashnode&utm_medium=feed) [May 7](https://hashnode.com/posts/rest-api-design-made-simple-with-express-js/69fcd7719f93a850a4005404) ### [The Node.js Event Loop Explained 馃攧](https://node-js-event.hashnode.dev/the-node-js-event-loop-explained?utm_source=hashnode&utm_medium=feed) Learn how the Node.js event loop works with simple explanations, real-life analogies, and beginner-friendly examples covering call stack, task queue, async operations, and scalability. 5 min read 路 [node-js-event.hashnode.dev](https://node-js-event.hashnode.dev/the-node-js-event-loop-explained?utm_source=hashnode&utm_medium=feed) [May 6](https://hashnode.com/posts/the-node-js-event-loop-explained/69fbb11050ecad45337a0389) ### [Why Node.js is Perfect for Building Fast Web Applications 鈿(https://why-nodejs-perfect-for-web-applications.hashnode.dev/why-nodejs-is-perfect-for-building-fast-web-applications?utm_source=hashnode&utm_medium=feed) Learn why Node.js is perfect for fast web applications. Understand non-blocking I/O, event-driven architecture, single-threaded design, and where Node.js performs best. 5 min read 路 [why-nodejs-perfect-for-web-applications.hashnode.dev](https://why-nodejs-perfect-for-web-applications.hashnode.dev/why-nodejs-is-perfect-for-building-fast-web-applications?utm_source=hashnode&utm_medium=feed) [May 6](https://hashnode.com/posts/why-nodejs-is-perfect-for-building-fast-web-applications/69fba42150ecad4533739844)