High Order Functions

Question 1

What is a high order function?

Answer 1

A function that can take a function as an argument and / or return a function.

Question 2

What are the 2 benefits of high order functions?

Answer 2

1. Avoids explicit recursion.
2. Avoids the reuse of code.

Question 3

What are the 3 main high order functions?

Answer 3

Map, Filter, Foldr.