React-native Android Emulator needs to turn on debugger mode

Question

Why I need to turn Debugger mode on for react-native app when I do run it in Android emulator in React-Native App ?

Answer 1

When your app foreground on the emulator, press ctrl+m at the same time. Then open menu, choose it Debug js remotely. Open browser this link http://localhost:8081/debugger-ui. Port number can be different.

Answer 2

Press cmd+m and it will show the options, then select "Debug" at the bottom