Fast Refresh is an official Hot Module Replacement (HMR) solution by React for React Native, applicable to the Web as well.Fast Refresh updates module code and re-renders components when editing files.Error handling in Fast Refresh allows fixing syntax and runtime errors without app reloads.Fast Refresh preserves component state in functional components and Hooks, with some limitations for class components.Tips for using Fast Refresh include adding // @refresh reset to force remounting components.Hooks' behavior in Fast Refresh retains state unless parameters or the order of Hook calls change.Fast Refresh integrates with React through Babel plugins, runtime mechanisms, and React's support.Integrating Fast Refresh with HMR involves registration logic and hooking into HMR APIs.Fast Refresh's core implementation is platform-independent, suitable for web applications with Webpack.Leapcell offers a Next-Gen Serverless Platform for hosting Node.js projects with cost efficiency and scalability.