Welcome to the Monastery | |
PerlMonks |
Re: (RFC) Arrays: A Tutorial/Referenceby kyle (Abbot) |
on Jan 13, 2007 at 04:51 UTC ( [id://594500]=note: print w/replies, xml ) | Need Help?? |
Arrays are a pretty basic concept in Perl and any other language. Someone who needs this tutorial may also need help with concepts like scalar context and when it's implied. I usually don't like something like this: $count = @array; It works, and it's clear, but mostly because of the variable names. Sometimes I've seen something more like: $stuff = @things; In that case, I think someone wrote a bug. It's clear what's meant if the scalar context is made explicit like so: $stuff = scalar @things; Otherwise, I have to read (perhaps a lot) more code to see how the variable is used and whether that makes sense, given its origin. When the scalar context is explicit, I can tell right away that the programmer really meant what was written.
In Section
Meditations
|
|