Ruby Methods

Question 1

|

Array

Set Union

example
(arr | arr)

Answer 1

Returns the same array but with duplicates removed. Works with numbers, strings.

Question 2

.uniq

Array

Uniq

example
my_array.uniq

Answer 2

Returns the same array but with duplicates removed. Works with numbers, strings.

Question 3

*args or something

Answer 3

any number of arguments

Question 4

*p

Answer 4

any number of arguments