Web Workers
Web Workers are a browser API that enables JavaScript code to run in background threads, separate from the main execution thread of a web page. This allows for concurrent processing, preventing blocking of the user interface during computationally intensive tasks. They facilitate multi-threading in web applications, improving performance and responsiveness.
Developers should use Web Workers when handling CPU-intensive operations like data processing, image manipulation, or complex calculations that could otherwise freeze the UI. They are essential for building responsive web apps, such as real-time dashboards or games, by offloading heavy work to background threads. This helps maintain smooth user interactions and enhances overall application performance.