Creating Instances of Structs

In the previous chapter, we learned how to define a structure. However, the definition serves as only a blueprint, specifying how data is stored in an instance of that structure.

An instance of a structure is essentially a variable with the structure as its data type. Since it's a variable, data can be stored and modified within it.

Consider the following example of the Person structure from the previous chapter:

index.go


              12345
            
type Person struct {
    name string
    age int
    salary float64
}

We can create an instance of Person using the following syntax:

index.go


              1
            
var person1 Person

Note

In code, the structure must be defined before its instances are created.

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Osio 6. Luku 2

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Kurssisisältö

Introduction to GoLang

1. Getting Started

2. Data Types

Integers Floating-Point Numbers Booleans Runes Strings Basic Type Casting String Formatting Challenge: String Formatting Practice

3. Control Structures

Comparison Operators Conditional Statements Conditional Chaining Logical Operators Switch Statement For Loop Break Statement Challenge: Practicing For Loop

4. Functions

5. Arrays and Slices

6. Intro to Structs & Maps

Creating Structs Creating Instances of Structs Data in Structs What are Maps?Map Declaration and Initialization Accessing Map Values Deleting Keys From Maps Challenge: Creating a Structure

Creating Instances of Structs

In the previous chapter, we learned how to define a structure. However, the definition serves as only a blueprint, specifying how data is stored in an instance of that structure.

An instance of a structure is essentially a variable with the structure as its data type. Since it's a variable, data can be stored and modified within it.

Consider the following example of the Person structure from the previous chapter:

index.go


              12345
            
type Person struct {
    name string
    age int
    salary float64
}

We can create an instance of Person using the following syntax:

index.go


              1
            
var person1 Person

Note

In code, the structure must be defined before its instances are created.

Oliko kaikki selvää?

Kiitos palautteestasi!

Osio 6. Luku 2