We're going to learn when and how to use the has_many through association. Then we're going to create an application with dynamic nested attributes.
See my thought process and implementation for solving the Secret Santa quiz from RubyQuiz.com
Quickly transform your collections into hashes where the key is the element, and the value is the count of the times it occurred.
Learn what Ruby's splat operator is, how to use it, and how popular Ruby libraries like Rails take advantage of it.