Performance Courses

Speed up your websites and web apps by mastrering Core Web Vitals metrics like Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and Interaction to Next Paint (INP).

Learn best practices for building scalable, high-performance web applications. Deep dive into front-end engineering: DOM APIs, virtualization, state management, and performance.

Learn advanced JavaScript performance optimization: garbage collection, memory profiling, data structures like sets and arrays, and event loop management. Learn performance-driven programming, preparing you to write blazingly fast and efficient code!

Build a mental model of JavaScript's performance characteristics through understanding virtual machines under the hood.

Identify and resolve performance issues in your web apps! Learn about performance issues, metrics, HTTP, browser cache, and service workers. Discover advanced optimization techniques and performance APIs.

Challenge your knowledge with a quiz on the advanced parts of web development! Answer 30 questions from JavaScript and CSS to performance, web security, and HTTP protocols.

Explore resumability with Qwik. Create instant-loading websites and ship less JavaScript by serializing the application and framework state in the HTML.

Write performant React apps by learning to structure components and memoize to avoid re-renders, load code on-demand, and leverage new concurrent features in React 18.

Make websites load instantly by using the Webpack code splitting feature for lazy loading JavaScript by removing unused code with tree shaking and prefetching assets.

Write more efficient JavaScript, optimize rendering performance, load assets faster with a CDN, split loading resources with Webpack, and more!