What if we want the for loop to log 3, 2, 1, and then 0? With simple modifications to the expressions, we can make our loop run backward!

To run a backward for loop, we must:

• Set the iterator variable to the highest desired value in the initialization expression.
• Set the stopping condition for when the iterator variable is less than the desired amount.
• The iterator should decrease in intervals after each iteration.

We’ll practice by changing the for we wrote previously to now go in reverse. When writing/changing loops, there is a chance that our stopping condition isn’t met and we get a dreaded infinite loop which essentially stops our programming from running anything else! To exit out of an infinite loop in an exercise, refresh the page - then fix the code for your loop.