Correct way to populate an Array with a Range in Ruby

warning: default `to_a' will be obsolete

irb> (1..4).to_a
=> [1, 2, 3, 4]

irb> 1..4.to_a
(irb):1: warning: default `to_a' will be obsolete
ArgumentError: bad value for range
        from (irb):1

0..10.to_a

(0..10).to_a

>> a=*(1..10)
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

Array (1..10)
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

(1..10).to_a
=> [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]