React native runs in the native ecosystem through a js-native-bridge and calls platform specifics system calls. https://reactnative.dev/architecture/xplat-imple

React native runs in the native ecosystem through a js-native-bridge and calls platform specifics system calls. https://reactnative.dev/architecture/xplat-implementation https://reactnative.dev/architecture/xplat-implementation react is the <Components /> stuff in js react-dom is the juice