Note I tend to "clear" an array using:

    @a= ();
[download]

and not with:

    undef @a;
[download]

The difference is that undef @a will free the memory allocated for the array. If you have put a really huge number of elements into @a and don't plan on doing that again for quite a while, then you probably do want to use undef @a to allow that memory to be reused in the mean time. Otherwise, @a= () is probably a better choice as it removes the overhead of freeing and then later reallocating memory.

Also note that @a= () does free the memory allocated for the elements of the array (except for elements that have other references to them).

        - tye (but my friends call me "Tye")