How do inherent prototypes work?
You might not think this question applies to you, especially if you come from a classical background. But if you use objects, functions, or arrays, you're probably already using prototypes, and can benefit from learning the logic behind them.
thiskeyword work and how to use them
Object.getPrototypeOffunctions to explain why objects have the properties that they do
Develop the knowledge needed to use inheritance for faster, better, bug-free code.