in reply to Re: Explanation of mapping and undef
in thread Explanation of mapping and undef

While it's true that any value would be ok, undef is generally preferred because there is one undef scalar that all undef values point to. This results in a small savings in memory, as well as being more descriptive.

------
We are the carpenters and bricklayers of the Information Age.

Then there are Damian modules.... *sigh* ... that's not about being less-lazy -- that's about being on some really good drugs -- you know, there is no spoon. - flyingmoose

I shouldn't have to say this, but any code, unless otherwise stated, is untested