This can be easily accomplished by calling Enumerable#to_a
on a Range
object:
(1..10).to_a #=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
(a..b)
means that it will include all numbers between a and b. To exclude the last number, use a...b
a_range = 1...5
a_range.to_a #=> [1, 2, 3, 4]
or
('a'..'f').to_a #=> ["a", "b", "c", "d", "e", "f"]
('a'...'f').to_a #=> ["a", "b", "c", "d", "e"]
A convenient shortcut for creating an array is [*a..b]
[*1..10] #=> [1,2,3,4,5,6,7,8,9,10]
[*'a'..'f'] #=> ["a", "b", "c", "d", "e", "f"]