June 2005
Beginner
480 pages
10h 31m
English
Content preview from SAMS Teach Yourself Perl in 24 Hours THIRD EDITION
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Q&A
| Q1: | Can I put functions in my class, and call them directly without an object? |
| A1: | Yes. In object-oriented terminology these are called class methods. To call a subroutine named doit (and retrieve its value) in a class named Widget you can do any of the following:
$value = Widget->doit(); $value = Widget::doit(); $value = doit Car; The last one may look odd, but it's a piece of syntax sugar that means the same thing as the others. |
| Q2: | This hour missed a lot of object-oriented stuff. There was no inheritance! No polymorphism! |
| A2: | There's far, far too much to cover in an hour. Perl includes these manual pages dedicated to objects: perlboot, perltoot, perltootc, perlobj, and perlbot. For an entire book on Perl objects, I'd recommend Object Oriented ... |
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.