loop code based on the result of a comparison made on each loop


x = 1
while x < 100
  puts x
  x = x * 2
end

1.	Here's the formal specification for the while loop:
2.	The while Loop
3.	Another form you can use is with begin/end
4.	The while loop executes its contained code while a condition that you specify remains true.
5.	While loop with array length
6.	use while loop to convert elements in an array to capitalized case
7.	Replace one array with another

loop code based on the result of a comparison made on each loop : while « Statement « Ruby