May 7
Loading video player...
Learn all major React 19 features including use(), Server Actions, useActionState, useFormStatus, useOptimistic, Refs as Props, and Metadata in Components in this complete tutorial. In this video, we compare the old way of handling async data with useEffect and the new React 19 approach using practical examples. React 19 introduces powerful new features that simplify async data handling, form submissions, and UI updates. In this video, you will learn: • use() API for async data and context • Server Actions for direct form handling • useActionState for managing submission state • useFormStatus for tracking form status • useOptimistic for instant UI updates • Passing refs as normal props • Defining metadata inside components This video explains how React 19 reduces boilerplate code and improves developer experience. #react19 #reactjs #frontend #webdevelopment #javascript 0:00 Stop Using useEffect? 0:20 Introducing the use() API 0:45 Old Way: Fetching Data with useEffect 1:28 Old Data Fetching Code 1:58 New Data Fetching with use() 2:35 Old useContext Code 2:58 Using use() with Context 3:57 Server Actions Example 4:44 Old Form Handling Code 4:48 Using useActionState 5:24 Old Form Submission Logic 5:44 Using useFormStatus 6:25 Optimistic UI with useOptimistic 7:00 Old Ref Handling 7:13 Refs as Props in React 19 7:59 Old Metadata Handling 8:10 Metadata Inside Components 8:28 React 19 Summary 9:00 Call to Action