What is an edge case in a loop?
An edge case refers to the extreme boundaries of the data, such as the very first element, the very last element, or processing an entirely empty array.
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More FAQs in Handling Edge Cases at the Start and End of a Loop
When the loop reaches the final element of the array, i+1 points to an index that does not exist, triggering an Index Out of Bounds exception.
Adjust the loop boundaries. If checking i+1, ensure the loop stops at length-1. If checking i-1, ensure the loop starts at index 1.
If written as i < length, the condition 0 < 0 evaluates to false immediately, and the loop is safely skipped. But complex boundaries (length-1) can cause bugs.
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