LIVECODE_Flow_conditional_array

acronymize.rb

def acronymize(sentence) # sentence => "be right back"
	return "" if sentence == ""

	# split sentence into array
	splitted = sentence.split #=> ["be", "right", "back"]
	
	# iterate .each and store first letters
	first_letter = [] # before iteration
	
	splitted.each do |word|
		first_letter << word[0]
	end

# with the FOR loop
# for word in splitted
# 	first_letter << word[0]
# end
	
	# first_letter = ["b", "r", "b"] after iteration

	# join them and upcase
	result = first_letter.join.upcase 

	# return IT
	return result
end


puts acronymize("") == ""
puts acronymize("be right back") == "BRB"

puts acronymize("be right back") # you can puts the result
brb = acronymize("be right back") # or store the result

game.rb

OPTIONS = %w(paper rock scissor)

# take a random option for computer
computer_choice = OPTIONS.sample
#puts "Computer: #{computer_choice.upcase}"

# prompt the user to choose an option (check it)
puts "What is your choice? #{OPTIONS.join(" ")}"
user_choice = gets.chomp


if OPTIONS.include?(user_choice)
	
# compare!
# outcome: win lose draw
	if computer_choice == user_choice
		puts "Draw!"
	else

		if  computer_choice == "paper" && user_choice == "scissor" ||
			computer_choice == "rock" && user_choice == "paper" ||
			computer_choice == "scissor" && user_choice == "rock"
			puts "You win!"
		else
			puts "You lose!"
		end		
	
	end
	
end