July 2018
Beginner
202 pages
5h 42m
English
Content preview from Lua Quick Start Guide
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Basic types
In the last section, you were introduced to the concepts of a variable and a value. This section explores the concept of what a value is. Every value has a data type, which intuitively describes what kind of data the value holds. Lua supports eight basic value types:
- nil: The absence of data. This type represents literal nothingness. If a certain piece of data is invalid or unknown, nil is usually the best way to represent that it is invalid or unknown.
- Boolean: A value of true or false. A Boolean value is binary and can only ever be in one of two states, true or false.
- number: A number can represent any real number: 0, -1, 5, or even decimals such as 3.14159265359.
- string: A string is an array of characters. When declaring a ...
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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.