loops.rb

# for i in 1..3 do 
#   puts ". "	
#   sleep 1
# end

# 3.times do
# 	puts ". "	
#     sleep 1
# end

# (1..3).each do

#   puts ". "	
#   sleep 1
#   if index == 3
#     break 
#   end
# end

# (1..5).each{ |index| 
#   if index == 3
#     break 
#   end
#   puts index
# }

# puts "Please enter 1"

# # while gets.chomp != "1"
# # 	puts "please try again"
# # end

# until gets.chomp == "1"
# 	puts "Please enter 1"
# end

rows = [1,2,3]
even_numbers = []
rows.each do |i| 
  if i.even?
     even_numbers << i
  end
end
p even_numbers

# p rows.map{ |i| i.even? }

# even_numbers = rows.select{ |i| i.even? }
# p even_numbers

# odd_numbers = rows.reject{ |i| i.even? }
# p odd_numbers