JavaScript

Build confidence with the best beginner javascript projects. Start with simple apps that teach DOM, APIs, events, storage and clean code.

Why is JavaScript blocking rendering? Learn what actually stops the browser, when it matters, and how to fix render-blocking scripts.

Learn how to defer JavaScript properly to improve page speed, avoid render blocking, and load scripts in the right order without breaking UX.

Learn how to lazy load images properly with simple HTML and JavaScript tips to improve page speed, reduce waste, and avoid common UX mistakes.

Learn how to reduce JavaScript bundle size with practical fixes for imports, code splitting, dependencies, and build settings that matter.

Wondering when should I use localStorage? Learn the right use cases, limits, trade-offs, and safer alternatives for front-end projects.

JavaScript event loop explained simply for front-end developers. Learn call stack, Web APIs, microtasks, macrotasks, and rendering timing.

Delivering enriched experiences to application users in critical – if you are considering using service workers or would like to know more read on to see how your project may benefit from them…