React 19 Beta has been released. It offers more flexibility with many exciting features. React 18 is great, but, React 19 introduced:
With all these features, it's worth learning and using React 19 now. In this talk, we will use one of its biggest features: Actions with the new hooks that have been introduced. With this, we’ll cover a step-by-step guide for upgrading our app to React 19.
Actions:
New Hooks:
useActionState
and useOptimistic
, and learn how they help developers to build more responsive and efficient applications.useActionState
simplifies common use cases for Actions, and how useOptimistic
enables optimistic updates for a smoother user experience.All these topics will be covered through code walkthroughs, snippets, live explanations, and short demos. This 20-minute talk will give you a clear understanding of the new features in React 19. The talk focuses on the most important information first to ensure that you get the most out of it.