RajeshHuria

# my_rack_mtd.rb
require 'rack'

def string_reverse env
  if ARGV[0].class == NilClass
    [400, {}, ["Input string missing"]]
  else
    final_str = ""
    str_arry = ARGV[0].to_s.reverse.split
    str_arry.each do |str|

RajeshHuria

def display(number) 
	print "The number you entered on the command line is "
	if number < 0
		puts "negative"
	elsif number > 0 
		puts "positive"
	else
		puts "zero"
	end
end