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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What’s a Type?
The terminology around types in programming languages can be confusing because each language community uses the terms slightly differently.
Most generally, setting the type of a variable, attribute, or method argument limits the set of values that can be assigned to that variable, attribute, or method argument. The type also determines the behavior of the variable within the program. For example, the result of x / y depends on the type of x and y. In many languages, the result will be different if the numbers are integers than if they are floating-point types.
Many programming languages have a set of “basic types” that can be used, often including strings, boolean values, different kinds of numerical values, and so on. Ruby doesn’t ...
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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.