January 2024
Intermediate to advanced
718 pages
20h 15m
English
Content preview from Programming Ruby 3.3Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Objects and Attributes
The BookInStock objects we’ve created so far have an internal state (the ISBN and price). That state is private to those objects—no other object can access an object’s instance variables. In general, this is a Good Thing. It means that the object is solely responsible for maintaining its own consistency. (We feel obligated to note here that there’s no such thing as perfect privacy in Ruby, and you shouldn’t depend on Ruby’s language privacy for security purposes.)
A totally secretive object is pretty useless—you can create it, but then you can’t do anything with it. You’ll normally define methods that let you access and manipulate the state of an object, allowing the outside world to interact with the object. These externally ...
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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.