Lecture 2 - FP

Question 1

Imperative vs declarative

Answer 1

Imperative - procedural, OOP, how to compute

declarative - functional, logic, what to compute

Question 2

What is meant by side effect

Answer 2

evaluating the same expression successively gives different answers

Question 3

referential transparency

Answer 3

not having side effects, you can replace function with result without have an effect on the application

Question 4

expression, comutation, value

Answer 4

expression - function, nested functions
computation - evaluation of an expression -> value
value - datatype element

Question 5

Functional programming characteristics

Answer 5

no assignment - cannot change val of a variable

functions are values - functions can take in functions and can return list of functions

Question 6

What does it mean that functions are deterministic

Answer 6

same input = same output

data is immutable