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Env : Nextjs 14, shadcn Problem : I want Tooltip to be placed at the top, but the z-index value is not applied due to the rendering order in Dom. Fix :use createPortalWhat is createPortal ? (Cluade Sonnet 3.5 Answer)Certainly. `createPortal` is a powerful feature provided by React that allows you to render a component's children into a different part of the DOM tree, outside of the component's o..

The useLayoutEffect hook is a React hook that can be used to perform side effects that require immediate DOM layout updates. It is similar to the useEffect hook, but it runs synchronously after all DOM updates have been completed, but before the browser repaints the screen. This makes it ideal for use cases such as measuring DOM elements, or animating or transitioning elements. One of the main b..

Server Actions: React’s first steps into mutability Within the context of RSCs, Server Actions are functions that you define in an RSC on the server side that you can then pass across the server/client boundary. When a user interacts with your app on the client side, they can directly call Server Actions which will be executed securely on the server side. This approach provides a seamless Remote..

Conclusion In summary, React 18's latest features improve performance in many ways. With Concurrent React, the rendering process can be paused and resumed later or even abandoned. This means the UI can respond immediately to user input even if a large rendering task is in progress. The Transitions API allows for smoother transitions during data fetches or screen changes without blocking user inp..

React Context is a way to share data between components without having to pass props down manually at every level. This can be useful for sharing data that is used by many components in an application, such as the current user, the current theme, or the current location. To use React Context, you first need to create a context object using the createContext() function. This function takes two ar..

React.FC and JSX.Element are both types that are used in TypeScript to represent React components. However, there are some key differences between the two types. React.FC is a type that is specifically designed for React components. It has an implicit children prop, which means that the component will accept children even if the children prop is not explicitly defined. React.FC also has default ..