On Fri, Jun 6, 2008 at 9:31 PM, Rodrick Brown <[EMAIL PROTECTED]> wrote:
> my $arrayRef = [ 1, 2, 3, ['a', 'b', 'c', ["Hello"] ]];
>
> I have no problem returning single elements but how would one walk this list
> of elements with say a for loop?
>
You can treat an array reference like an array by prefixing it with an
@ (this is called dereferencing):
for my $item (@$arrayRef) {
if (my $type = ref $item) {
print "item is a $type reference\n";
} else {
print "item is $item\n";
}
}
If you just want to print out the items held in the data structure you
can use a recursive function:
sub print_it {
for my $item (@_) {
if (ref $item) {
print_it(@$item);
next;
}
print "$item ";
}
}
print_it($arrayRef);
--
Chas. Owens
wonkden.net
The most important skill a programmer can have is the ability to read.
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