There is a built-in debugger in VSCode and we can debug using the chrome dev tools. Good to know both but the VSCode debugger seems like table stakes.
The Ziskind video is the best
Note: Debugger for chrome extension by MS as mentioned by Max is deprecated? Yeah because it is built directly into VSCode.
The data structures and algorithms course was my first introduction. In the explanation of recursion and a factorial function he showed the calls on the call stack and although the function names were the same the value for n was different.
Alex Ziskind here
Traversy Media here Call Stack in Chrome Dev tools
Jay Wolfe here
VSCode 2018 here
Max Schwarzmueller TS Course