- Arrays are a list of indexed items stored inside
<a href='http://ruby-doc.org/core-2.2.0/Array.html' target='_blank' rel='nofollow'>] brackets.
- Ruby uses zero-based indexing. This means the first item in the array is stored in index number
0 , then the second is at index number
1 , and so on incrementing by values of 1 for each additional item stored in the array.
- Arrays can be created using
- Ruby has many build in methods to perform operations on arrays such as reversing or finding an element stored in the array.
arr = [1,2,3]
# is equivalent to:
arr = Array.new(3)
arr = 1
arr = 2
arr = 3
# is also equivalent to:
arr = Array(1..3)
# All three of these examples return: