You don't need anything other than the react and react-dom js-files to get started. Browsers support modules natively now, so don't waste time setting up a bundler in the beginning.
Once you think you need it, add more advanced features like a toolchain for building, auto-reload, jsx, npm etc.
Thanks for the respons, Antonie. I know but probably what i mean is like a "framework" (?). Things that allow me to seperate such as header section, footer, sidebar, etc
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.