* Maybe unpredictable Ruby behaviour *.md

Array#max with n and block

[0, 1, 2, 3, 4, 5].max
# => 5

[0, 1, 2, 3, 4, 5].max(2)
# => [5, 4]

[0, 1, 2, 3, 4, 5].to_h { |number| [number, number.to_s.ord] }
# => {0 => 48, 1 => 49, 2 => 50, 3 => 51, 4 => 52, 5 => 53}

[0, 1, 2, 3, 4, 5].max { it.to_s.ord }
# => 5

[0, 1, 2, 3, 4, 5].max(2) { it.to_s.ord }
# => [0, 4]

Why [0, 4]?

Array#min with n and block

[0, 1, 2, 3, 4, 5].min
# => 0

[0, 1, 2, 3, 4, 5].min(2)
# => [0, 1]

[0, 1, 2, 3, 4, 5].to_h { |number| [number, number.to_s.ord] }
# => {0 => 48, 1 => 49, 2 => 50, 3 => 51, 4 => 52, 5 => 53}

[0, 1, 2, 3, 4, 5].min { it.to_s.ord }
# => 0

[0, 1, 2, 3, 4, 5].min(2) { it.to_s.ord }
# => [3, 2]

Why [3, 2]?

Range#first (same for Range#last)

(0...0).one?
# => false

[].one?
# => false

(0...0).first
# => 0

[].first
# => nil

(0...0).to_a
# => []