Wow, that's kind of cool. It's useful as an intro to typeglobs, too...
Maybe I like it because I've finally found a JAPH I was able to decode by inspection :)
Basically, this sets up sub _, %_, @_, and $_ to point to letters 'h', 'p', 'a', and 'j'. %_ actually maps 'p'=>undef.
$; is then set to a reference to *_, the typeglob for all
things named _.
The print line then prints the results of dereferencing
that typeglob reference as a scalar ('j'), an array ('a'), a hash ('p' and undef, which is printed as just 'p'), and a subroutine, 'h'.
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! —
Posts may use any of the Perl Monks Approved HTML tags:
Outside of code tags, you may need to use entities for some characters:
- 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
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||