Mastering Functional Programming

Questions

1. What is the general approach you take when writing an imperative collections-based application?
2. What is the general approach you take when writing a functional collections-based application?
3. Why is it not necessary to be trained in algorithm reasoning when dealing with functional data structures (in the majority of cases)?
4. What is the algebraic approach to programming?
5. What are the benefits of adopting an algebraic style?
6. What is the purpose of effect types such as Option or Try ?