Web Reference: Jan 30, 2024 · Here we use a simple while -loop. We introduce an iteration variable—this has the identifier "I." We start this variable at 10. And We increment the variable by 10, while it is less than 50. We print each iteration value. Warning In the while -loop, we must be careful to avoid an infinite loop. Jul 11, 2025 · The while and for loops are entry-controlled, meaning the condition is evaluated before executing the loop body. On the other hand, the do..while loop is exit-controlled, ensuring the loop body is executed at least once. Now that you are familiar with conditions, it's time to look at another kind of loop: The while loop. This type of loop is much more powerful than the one you've seen already. But it requires understanding conditionals. It's basic for is: while cond ... end
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