Mobile - Android debugging (adb)
How to debug mobile issues
You can connect your mobile to your computer to see your mobile screen on your computer and also see console output from Chrome. So you can put logs into your code and see what is happening.
Install adb (android-tools-adb)
apt-get install android-tools-adb android-tools-fastboot
Restart adb server
sudo adb kill-server
sudo adb start-server
//to list attached devices
adb devices
In Chrome
you can then run
chrome://inspect/#devices
In Chrome
open Developer Tools (F12)
and click on three dots
in upper right corner, then More Tools > Remote Devices
to see list of attached devices.