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Introduction to GoLang
course content

Course Content

Introduction to GoLang

Introduction to GoLang

1. Getting Started
What is Go Programming Language?Hello WorldComments in GoBasics of VariablesModifying Variable ValuesConstantsBasics of Operators & ExpressionsChallenge: Hello WorldChallenge: Comments in GoChallenge: Basics of VariablesChallenge: Constants
2. Data Types
IntegersFloating-Point NumbersBooleansRunesStringsBasic Type CastingString FormattingChallenge: String Formatting Practice
3. Control Structures
Comparison OperatorsConditional StatementsConditional ChainingLogical OperatorsSwitch StatementFor LoopBreak StatementChallenge: Practicing For Loop
4. Functions
Declaring and Defining FunctionsLocal and Global ScopesPassing Data into the FunctionsReturn Values from FunctionsMultiple Return ValuesPassing Functions as ArgumentsChallenge: Reviewing Concepts of Functions
5. Arrays and Slices
Declaring ArraysAccessing and Modifying Array ElementsSlicesLength vs CapacityMulti-Dimensional ArraysIterating Over ArraysPassing Variable Number of Arguments into FunctionsPassing Arrays into FunctionsChallenge: Finding the Largest Element in a Grid
6. Intro to Structs & Maps
Creating StructsCreating Instances of StructsData in StructsWhat are Maps?Map Declaration and InitializationAccessing Map ValuesDeleting Keys From MapsChallenge: Creating a Structure

book
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:

go

index

copy

              
12345

            
type Person struct {
    name string
    age int
    salary float64
}

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

go

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copy

              
1

            
var person1 Person

Note

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

question mark

How would you create an instance called stud1 of the following class:

Select the correct answer

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Section 6. Chapter 2
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