Well I was about to post a clarification of cfreak
's node, but sgifford
beat me to it, so I'll just add that map
returns a list, so to avoid making perl do all that work for nothing (and not bothering to put a variable in quotes where no interpolation is needed), I'd use:
print "before $_\n" for @instances;
screwed $_ for @instances;
print "after $_\n" for @instances;
Of course for
also aliases array elements to $_, so this will still suffer from the same thing that caught you unless you use the local $_
in your sub. As a matter of (possibly paranoid) habit I tend to avoid the various implicit uses of $_ in code that I expect to keep any length of time. While it's extremely handy for one-liners, it's just not worth the potential trouble in more complex code.
I'd like to be able to assign to an luser
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.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||