2.1, 2.2: The first paragraph of "perldoc -f delete" contains:

In the case of an array, if the array elements happen to be at the end, the size of the array will shrink to the highest element that tests true for exists() (or 0 if no such element exists).

Does this reasonably answer your question?

In reply to Re^3: using function delete with arrays by Anonymous Monk
in thread using function delete with arrays by locked_user rumos-er

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