Ruby: What is the easiest way to remove the first element from an array?

Question

Lets say I have an array

[0, 132, 432, 342, 234]

What is the easiest way to get rid of the first element? (0)

Answer 1

a = [0,1,2,3]

a.drop(1)
# => [1, 2, 3] 

a
# => [0,1,2,3]

and additionally:

[0,1,2,3].drop(2)
=> [2, 3]

[0,1,2,3].drop(3)
=> [3]