Say you have a function that returns a list, like split. And you only want a few of the items it returns. What's the best way to get only the values you want?
If the ones you want are at the beginning of the list, it's easy:
($foo, $bar) = split(" ", $baz);
But if they're somewhere in the middle, I typically do this:
($trash, $trash, $foo, $trash, $bar) = split(" ", $baz);
Using
$trash makes it easy for me to see which values I actually care about.
There are other ways, too. You can enclose the split in parens and use brackets to access particular elements, like an array. But is there a widely accepted method that I'm missing?
---
A fair fight is a sign of poor planning.
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
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:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, 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, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.