Loops

Question 1

Create a while loop which will loop through a deck of cards until it finds a spade.

Answer 1

cards = ["Diamond", "Heart", "Club", "Diamond"]
current_card = "Heart"

while current_card != "Spade"
puts current_card
current_card = cards[rand (0..3)]
end
puts "OMG a SPADE!"

Question 2

Create a quick example of a until loop

Answer 2

counter = 1

until counter == 10

end

Question 3

Create a for loop which will print the numbers 1 to 10 (including 10) to the console.

Answer 3

for num in (1..10)
puts num
end

Question 4

Print the numbers 20 through 0 to the console using a iterator method. Also create a iterator method that will print the numbers 1 to 5 to the console.

Answer 4

j = 21
loop do
j -= 1
puts "#{j}"
break if j <= 0
end

j = 0
loop do
j += 1
puts "#{j}"
break if j >= 5
end

Question 5

How would you use a iterator method to print the numbers 1 to 5 excluding the even numbers.

Answer 5

j = 0
loop do
j += 1
puts "#{j}"
end