javascript

Master Express Router for modular route organization. Learn nested routes, route parameters, request validation with express-validator, file uploads with multer, and RESTful API design best practices.

Understand the fundamental differences between JavaScript in the browser and JavaScript on the server (Node.js, Bun, Deno). Learn about APIs, global objects, module systems, and what changes when JS leaves the browser.

A practical roadmap for frontend engineers (React, Angular) to transition into backend development with Node.js, Bun, and Deno. Covers what you already know, what's new, and how to build your first API.

Master Express.js middleware patterns. Learn to create custom middleware, use popular third-party middleware like morgan, cors, and helmet, and implement robust error handling with complete code examples.

Learn React from scratch — JSX, components, props, state, useEffect, event handling, lists, and the React developer mindset. A practical, hands-on introduction to building with React.

Master React.js and Next.js from fundamentals to full-stack production apps. A structured 12-post roadmap covering hooks, state management, App Router, Server Components, authentication, performance, and deployment.

Learn Express.js fundamentals from scratch. Set up your first Express server, understand middleware, handle HTTP requests, and build a simple REST API with complete code examples.

Compare Bun, Node.js, and Deno in depth: performance benchmarks, TypeScript support, package management, compatibility, security models, and which runtime to choose for your next project.

Master modern JavaScript build tools including Vite, Turbopack, Webpack, esbuild, and Rollup. Learn how bundlers work, why they matter, and which tool to choose for your project.

Master TypeScript's type system, interfaces, generics, and utility types. Essential foundation for building type-safe applications in 2 weeks.