Time: 0:00
Test a custom input to verify an edge case (e.g. empty lists, negative numbers, duplicates).
This bug belongs to the infinite loops pattern
The tab freezes, nothing prints, and the loop condition never becomes false.
What went wrong: i never goes down, so the loop keeps adding the same letter and never ends.
The fix: add i--; inside the loop.
Remember: a while loop needs three things: a start value, a check, and a step that changes the value.
The pattern behind it: infinite loops.
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<iframe src="https://trybughunt.com/embed/f15c1ecb-2f5e-4656-8184-bfb1b97c5caf" title="Debugging challenge: Reversing a word never finishes" width="100%" height="580" loading="lazy" style="border:1px solid #d4d4d8;border-radius:12px;max-width:760px"></iframe>
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