- how to write class declaration
- how to set up test file
- how to use git ignore
- test command I tried
npx jest robot-simulator.spec.js
robot-simulator.js.-.robot.WSL_.Ubuntu-20.04.-.Visual.Studio.Code.2022-03-23.00-10-09.mp4
- add grid to show the robot's location
- make robot work with command from the point where robot already existed
- use keyboard control to move robot's coordinate