Rob Dixon wrote: > > I don't think so. $#array returns the index of the last existent element of > the > array. The one which pop() will delete and return, and the one after which > push() will add an element. > > I'm not sure what you mean about 'while', but an array evaluates as true if it > has any existent elements. > > 'for' iterates over a list, and Perl derives a list from an array by inserting > undefined values where there are non-existent elements before the end of the > array. > > It may not be fully documented but it is all self-consistent and works well.
I have since found an anomaly, being that my $item = pop @array; is different from my $item = delete $array[-1]; in that pop() vivifies undefined elements beneath the popped one, whereas delete() leaves them alone. Rob -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
