Array Flatten

array_flatten.rb

require 'json'

def flatten_current_array(array,new_array)
  if array.class == Array
    array.each do |elem|
      flatten_current_array(elem,new_array)
    end
  else
    new_array.push(array)
  end
end


begin
  input_string = gets.strip
  input_array=JSON.parse input_string
  flattened_array=[]
  flatten_current_array(input_array,flattened_array)
  puts flattened_array.to_s
rescue Exception => e
  puts "Error Message: #{e.message}"
  puts "Error Trace: #{e.backtrace.inspect}"
end