hello guys!

I have a hash of hashes, for example:

%hash = {
         abc => {
                 def => 1,
                },
         ghi => {
                 jkl => 1,
                },
};
[download]

What happen if I do:

delete($hash{abc}{def});
[download]

am I staying with?:

%hash = {
         abc => undef,
         ghi => {
                 jkl => 1,
                 mno => 1,
                },
};
[download]

That was the first question.
My second one is, I'm looping over the hash and delete keys as shown above if fulfilled a condition. If the ansewer to the first question is yes, is there a short way to delete also the first level key ('abc' in the example) when deleted all second level keys under it. In the example, when performing the above delete, i would have like to stay with:?:

%hash = {
         ghi => {
                 jkl => 1,
                 mno => 1,
                },
};
[download]

Thanks

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

Outside of code tags, you may need to use entities for some characters:

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.