JavaScript traditionally runs on a single thread, which means heavy computations can freeze your user interface. Web Workers solve this by allowing you to run JavaScript in background threads, keeping your UI responsive.

In this unit, you’ll learn how to use Web Workers. We’ll cover creating workers, communicating between the main thread and workers, handling errors, and understanding when Web Workers are the right solution for your performance needs.

Web Workers are essential for building performant applications that need to handle complex calculations, data processing, or other CPU-intensive tasks without impacting user experience.

Lessons in this unit: