March 2005
Intermediate to advanced
1064 pages
34h 51m
English
Content preview from Pro Perl
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CHAPTER 10Inside Modules and Packages
We have already seen how modules work from the user's perspective through the do, require, and use statements. We have also seen the relationship between modules and packages. In this chapter, we examine the internals of implementing modules.
In order for modules to be easily reusable, they need to be well behaved. That means not defining variables and subroutines outside their own package unless explicitly asked to do so. It also means not allowing external definitions to be made unless the design of the module permits it. Exporting definitions from one package into another allows them to be used without prefixing the name of the original package, but it also runs the risk of a namespace collision, so both ...
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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.Julian F.
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.Addison B.
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.Amir M.
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.