April 2021
Beginner
336 pages
5h 32m
English
Content preview from Go Programming Language For Dummies
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Chapter 2
Working with Different Data Types
IN THIS CHAPTER
Declaring variables
Declaring constants
Getting rid of unused variables
Manipulating strings
Converting the data type of one value to another
This chapter explores one of the foundational building blocks of programming: how to declare variables and constants in Go. This chapter also tells you how to manipulate strings in Go and how to convert data from one type to another.
In Go, there are four types of data:
- Basic: Examples include strings, numbers, and Booleans.
- Aggregate: Examples include arrays and structs.
- Reference: Examples include pointers, slices, functions, and channels.
- Interface: An interface is a collection of method signatures.
In this chapter, I focus on the basic data types in Go. (I cover the other data types throughout the rest of this book.)
Declaring Always-Changing Variables
In programming, variables ...
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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.