Notice: This page requires JavaScript to function properly.
Please enable JavaScript in your browser settings or update your browser.Comments in Go | Getting Started
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

bookComments in Go

Comments serve as annotations in code, providing additional information to the code's reader, such as explanations of what the code accomplishes and how it operates.

They are not executed as part of the program and are disregarded by the compiler, thus having no impact on the code's behavior.

Note

In Go, a compiler is a program that translates human-written Go code into a format comprehensible and executable by a computer.

There are two types of comments in Go: Single-line comments and Multi-line comments.

Single-Line Comment

You can create a single-line comment in Go by typing two forward slashes (//). Anything following these double slashes will be recognized as a comment by the compiler and text editors:

go

index

copy

              
1234567

            
package main
import "fmt"

func main() {
    // This is a single line comment
    fmt.Println("Hello World") // This is another comment
}

Multi-Line Comment

A multi-line comment in Go starts with /* and ends with */. Everything enclosed between these markers constitutes the comment's content:

go

index

copy

              
123456789101112

            
package main
import "fmt"

func main() {
    /*
    This
    is a
    multi-line
    comment
    */
    fmt.Println("Hello World") /* it can also be added in a single line */
}

By using comments, we can make the code more readable and understandable, both for ourselves and for others who may work on the code in the future.

Everything was clear?

How can we improve it?

Thanks for your feedback!

Section 1. Chapter 3
some-alt