As someone who hates debuggers and is a fan of "learning by doing", I make heavy use of console.log() or similar, and I start putting breakpoints all over the c

As someone who hates debuggers and is a fan of "learning by doing", I make heavy use of console.log() or similar, and I start putting breakpoints all over the code that print out sentinels ("hey, I'm in this part of the code") and data ("the content of this variable are: XXXX"). Then I run the app and put it through its paces, while watching the output in another console. If there's some code that doesn't make sense, I use console.log() heavier in that section, to help me fully understand what it does. Once I have that level of understanding, I then write some comments in the code and commit them so that other contributors may benefit in the future.