Task

Show a loop which prints random numbers (each number newly generated each loop) from 0 to 19 (inclusive).

If a number is 10, stop the loop after printing it, and do not generate any further numbers.

Otherwise, generate and print a second random number before restarting the loop.

If the number 10 is never generated as the first number in a loop, loop forever.



Related tasks

   Loop over multiple arrays simultaneously
   Loops/Break
   Loops/Continue
   Loops/Do-while
   Loops/Downward for
   Loops/For
   Loops/For with a specified step
   Loops/Foreach
   Loops/Increment loop index within loop body
   Loops/Infinite
   Loops/N plus one half
   Loops/Nested
   Loops/While
   Loops/with multiple ranges


Red [
    Title: "Loops/Break"
    URL: http://rosettacode.org/wiki/Loops/Break
]
 
random/seed 2 ; Make repeatable. Delete line for 'true' randomness.
 
r20: does [(random 20) - 1]
 
forever [
    prin x: r20
    if 10 = x [break]
    print rejoin [" " r20]
]
print ""