Performance Courses

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.

Learn to identify and resolve performance issues in your web apps! Learn about performance issues, metrics, HTTP, browser cache, and service workers. Discover basic to 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.

Learn to improve your core web vitals metrics like first contentful paint (FCP), largest contentful paint (LCP), and cumulative layout shift (CLS) in this course.

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!