Getting Started

Question 1

Explain side effect in a function

Answer 1

Haskell functions have no side effects.

Question 2

Describe variables in Haskell

Answer 2

cannot change the value of a variable later in the program. If variable ‘a’ is set to 5, it remains so throughout the funciton

Question 3

Describe Referential Tarnsparency

Answer 3

If a function yields the same result, given the same inputs irrespective of the number of times it has been called - is called referential transparency.

Question 4

Describe Lazy Evaluation in Programming Langauages

Answer 4

expressions and functions are evaluated only when needed.This also avoids repeated evaluations thereby increasing performance