The answer
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.
Handling Edge Cases at the Start and End of a Loop
What is an edge case in a loop?
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.
Still have questions?
Browse all our FAQs or reach out to our support team
Want to upskill yourself?
Your learning library
Small steps. Big possibilities.
Find your next course. Build something great.