16 - Functional Programming

Question 1

What is a key feature of functional programming languages regarding data structures?

Answer 1

Data structures/variables are immutable, meaning the state/values cannot be changed after they are created.

Question 2

What does it mean for functions in functional programming languages to be stateless?

Answer 2

Functions do not have side-effects; the output depends only on inputs and is not influenced by stored state.

Question 3

What are higher-order functions in functional programming?

Answer 3

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

Question 4

What is an example of a higher-order function?

Answer 4

Map and fold.

Question 5

How can the order of execution be determined in functional programming languages?

Answer 5

The order can be determined at run-time by the translator/compiler/interpreter.

Question 6

True or False: In functional programming, the order of execution is defined by the program code.

Answer 6

False.

Question 7

Fill in the blank: A higher-order function is a function that takes a _______ as an argument.

Answer 7

function.