I am trying to understand why the following warning is give in perldoc.

"WARNING: Calling exists on array values is strongly discouraged. The notion of deleting or checking the existence of Perl array elements is not conceptually coherent, and can lead to surprising behavior."

I am no longer doing this having swapped to using a hash with numerical keys instead. In my situation the numerical keys ($elementIndex) are not contiguous i.e 0,3,7. Checking if an element exists using  if (exists $myArray[$elementIndex]) {... seemed to work as expected, so I am trying understand why this warning is given?

In reply to Using exists to check element in array by david

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