Enum

The Enum module consists of functions to work with collections List and Maps are examples of enumerables.

Enum functions

map(enumerable, fn)

Returns a list where each element is the result of invoking fun on each corresponding element of enumerable.

> Enum.map([4, 5, 3], fn x -> x * 2 end)
[8, 10, 6]

reverse(enumerable)

Takes in a list and returns the list of reverse order

> Enum.reverse([2,4,5])
[5, 4, 2]

sort(enumerable)

Sorts the enumerable by the given function.

> Enum.sort([6,2,7,1])
[1, 2, 6, 7]

sum(enumerable)

Takes in a list of numbers and returns its total sum

> Enum.sum([1, 2, 3, 4])
10