Performance Optimization Techniques

The primary performance advantage of Web Workers is that they enable true parallel processing by running JavaScript code on separate threads. JavaScript is traditionally single-threaded, which means CPU-intensive tasks can block the main thread and cause UI freezing. Web Workers allow you to offload these heavy computations to background threads, keeping the main thread free for user interactions and UI updates. Workers cannot directly access the DOM, window object, or parent variables, but they can communicate with the main thread through a messaging system. This makes them ideal for tasks like complex calculations, data processing, or background synchronization that don't require DOM access.