The days of static HTML documents are long gone. Modern user interfaces are dynamic, interactive, and complex. Most of this complexity comes from having to manage and represent concurrent asynchronous processes like requests to the server, timeouts and retries, background processing, native/browser apis, and so on. Frontend frameworks like React are incredibly helpful at constructing a synchronous UI representation of the application state, but force us to orchestrate user events with async processes ourselves. This approach is riddled with issues like race conditions, inconsistent state, UI tearing or flickering, spinner hell, etc.

These issues are being addressed by frontend frameworks like React and Solid with new features that eliminate all the asynchronous orchestration and give us consistent UIs by default. This session will explore some of these features, and how they remove a lot of the complexity of building dynamic and asynchronous frontends.