April 2021
Beginner
336 pages
5h 32m
English
Content preview from Go Programming Language For Dummies
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Chapter 7
Defining the Blueprints of Your Data Using Structs
IN THIS CHAPTER
Defining structs for collections of items
Making a struct in Go
Copying a struct
Defining methods in structs
In the previous chapter, I tell you all about arrays and slices and show you how to group a collection of items together as a single unit. In this chapter, I fill you in on another way to represent your data: a struct. A struct (short for structure) is a used-defined type that allows you to group related data into a single logical unit. Here, I show you how to define and initialize a struct, make copies of a struct, define methods in a struct, and compare structs.
Defining Structs for a Collection of Items
Consider the following scenarios where you want to store the location of a point in a two-dimensional (2D) coordinate space. The x- and y-coordinates of the point can simply be stored using two variables:
pt1X := 3.1pt1Y := 5.7
If you have another point, you have another set of variables:
pt2X := 5.6pt2Y := 3.8
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