Ruby Language Control Flow while, until

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Example

A while loop executes the block while the given condition is met:

i = 0
while i < 5
  puts "Iteration ##{i}"
  i +=1
end

An until loop executes the block while the conditional is false:

i = 0
until i == 5
  puts "Iteration ##{i}"
  i +=1
end


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