Handmade yield

my_each.rb

def my_each(array)
  empty = (array.length == 0)
  i = 0
  while (i < array.length) && !empty
    yield array[i]
    i += 1
  end
  array
end

sea_array = ["turtle", "shark", "whale", "eel"]
num_array = [5,2,6,1,0]
empty_array = []

puts "sea_array = #{sea_array.inspect}"
puts "my_each(sea_array) {|creature| puts creature}:"
my_each(sea_array) {|creature| puts creature}
puts
puts "sea_array.each {|creature| puts creature}:"
sea_array.each {|creature| puts creature}
puts

puts "num_array = #{num_array.inspect}"
puts "my_each(num_array) {|num| puts (num * 10)}:"
my_each(num_array) {|num| puts (num * 10)}
puts
puts "num_array.each {|num| puts (num * 10)}:"
num_array.each {|num| puts (num * 10)}
puts

puts "empty_array = #{empty_array.inspect}"
puts "my_each(empty_array) {|element| puts element}:"
my_each(empty_array) {|element| puts element}
puts
puts "empty_array.each {|element| puts element}:"
empty_array.each {|element| puts element}
puts