vinyl

gistfile1.txt

def my_flatten(arr)
  result = []
  return result unless arr.is_a?(Array)
  arr.each do |value|
    if value.is_a?(Array)
      my_flatten(value).each { |y| result << y}
    else
      result << value if value.is_a?(String)
    end
  end
  result
end



test_array = ['birds', {name: 'jon'}, 'bees',7, [32, 'other', ['max', 23, 'minnie', ['some',nil,'more']], {name: 'bill'}, 'me'],[]]
puts "starting test array: #{test_array}"
puts "my_flatten: #{my_flatten(test_array)}"

empty_array = []
puts "empty array - should be empty array for result: #{my_flatten([])}" 

hash = {name: "joe", some: ['birds', 'bees']}
puts "hash - should be empty array for result: #{my_flatten(hash)}"

puts "nil - should be empty array for result: #{my_flatten(nil)}"

empty_array = []
puts "empty array: #{my_flatten([])}" 

hash = {name: "joe", some: ['birds', 'bees']}
puts "hash: #{my_flatten(hash)}"

puts "nil: #{my_flatten(nil)}"