Hi, I've been using perl for years (casually). Yesterday, by accident, I noticed that the following code 
$a = ['a', 'b', 'c'];
for $i (@{$a}) {
    undef $i;
}

[download]
will actually undef all of the the elements in $a. Not what I expected... I expected that (@{$a}) would result in a list of the elements of $a and $i would take on the value of each of the elements, not a reference to the elements. If I said something like 
@x = @{$a}
-OR-
@x = (@{$a})

[download]
@x would have the elements of $a not the refs... This seems very odd to me. Am I alone in this thinking?

In reply to Using Array Refs by jroberts

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