React Conf 2025: Key Takeaways on React 19.2 Features

Well, I was binging 2 days of React Conf 2025 and as a React developer myself, the future of the React framework seems brighter than ever with React 19.2 ! Below are some key takeways on the announcements and features announced: 1. The formation of React Foundation ! Until now, React was maintained by Meta but now it will be under the new independent and community-driven React Foundation. Companies, devs and open source contributors all will have a say in how the framework evolves. 2. <Activity/> This tag is kind of similar in function to the style attribute 'display' . You can hide and show a rendered element. The difference with the <Activity/> is that if the element is hidden, it still gets rendered behind the scenes based on logic. Unlike using the display attribute where the rendering happens when element is toggled to visible. 3. useEffectEvent() If you have used the useEffect hook in React, you might have observed that variables mentioned inside have to be in the dependency array, which can be really annoying. Fortunately, useEffectEvent solves that problem. Inside a useEffect hook, pass a callback function to this hook and you won't have to mention it as a dependency. 4. React Compiler 1.0 My favorite feature that got announced. In short, this is a compiler that auto-optimizes your React app for the best performance. No need to memoize values and functions with useCallback and useMemo. This compiler will see the data flow of the app and handle all that. That's pretty powerful and reassuring ! 5. View Transition API View Transitions is a native browser API that allows smooth, animated transitions between DOM states like page navigations, layout changes, or route updates without heavy manual animation code. I recommend watching the conference on YouTube since the demos and talks are really enlightening and cover even more features. Amazing event ! #ReactConf2025 #React #JavaScript #FrontendDevelopment #WebDevelopment

  • icon

Excited for the new feature that React 19 brings

To view or add a comment, sign in

Explore content categories