https://medium.freecodecamp.org/these-tools-will-help-you-write-clean-code-da4b5401f68e

Learning to write good code, but you don’t know where to start… Going through style-guides like Airbnb’s Javascript Style Guide… Trying to write code with best practices...

Removing dead code? Finding unused variables in the code base? Trying to find problematic patterns in your code? Like, does it return or not?