Types and classes

Question 1

What is a type?

Answer 1

A name for a collection of related values

Question 2

What is a function type?

Answer 2

Map values of one type to values of another

Question 3

What is a curried function?

Answer 3

Function takes multiple arguments and returns one value (of one type)

Question 4

What is a polymorphic function

Answer 4

A function where the type is of any type

Question 5

What is an overloaded function

Answer 5

A polymorphic function which contains a class constraint (Num , Eq, Ord)

Question 6

What is a type interface?

Answer 6

Type is calculated at compile time

Question 7

What is a list type?

Answer 7

A sequence of values of the same time

Question 8

What is a tuple type?

Answer 8

A sequence of values of different types (encodes size)

Question 9

Give some examples of polymorphic functions in standard prelude

Answer 9

head
take
zip
id
fst

Question 10

Give some examples of overloaded functions in the standard library

Answer 10

+ (Num)
== (Eq)
< (Ord)