How to use constants in Golang
What is a Constant or Const in Golang? Here's what you need to know about using constants in Go.
How to create basic program in Golang
Hello, World! is the first basic program in any programming language. You can write this first program in Golang by following the steps below.
First, open the Go compiler. In the Go language, programs are saved with the .go extension and are UTF-8 text files.
Now, first add the main package to your program:
package mainEvery program must start with a package declaration . In Go, packages are used to organize and reuse code. In Go , there are two types of programs available, executables and libraries. Executables are programs that can be run directly from the terminal. Libraries are program packages that we can reuse in our programs. Here, the main package tells the compiler that the package should be compiled into an executable program, not a shared library. This is the starting point of the program and also contains the main function .
After adding main package import “fmt” package to your program:
import(
"fmt"
)Here, import keyword is used to import packages into the program and fmt package is used to implement formatted Input/Output using functions.
Now write code in main function to print hello world in Go language:
func main() {
fmt.Println("!... Hello World ...!")
}In the above lines of code, we have:
- func : Used to create functions in Go language.
- main : Is the main function in Go language, contains no parameters, does not return any values and is called when you execute the program.
- Println() : This method is available in fmt package and is used to display the string “ !… Hello World …! ”. Here, Println means Print line.
For example:
// Chương trình Go đầu tiên
package main
import "fmt";
// Hàm chính
func main() {
fmt.Println("!... Hello World ...!")
}
Result:
!... Hello World ...!How to run Golang program
To run a Go program, you need a Go compiler. Once you have a Go compiler, first create a program and save your program with the .go extension , for example, first.go . Now we run this first.go file in the go compiler using the following command, i.e.:
$ go run first.go
Volatile functions in Golang
Variadic functions in Go allow you to pass a variable number of arguments to a function. Here's everything you need to know about variadic functions in Golang.
Named return parameters in Golang
In Golang, named return parameters are often referred to as named parameters. Golang allows naming the return parameters or results of functions in the function signature or definition.
Keywords in Go
Keyword - Keywords are words in a language that are used for some internal processes or represent some predefined actions. Here is what you need to know about keywords in Golang.
Data types in Golang
Data types specify what type of data a valid Go variable can hold. In the Go language, types are divided into four categories as follows:
Function arguments in Golang
Go supports two main ways to pass arguments: Pass by Value and Pass by Reference. Go uses pass by value by default.
Function returning multiple values in Golang
In Go language, you are allowed to return multiple values from a function, using the return statement. In other words, in a function, a return statement can return multiple values.
Switch Statement in Go
Golang like most other programming languages has switch statement. Here is how to use switch statement in Golang.
Cases to know when using selection statements in Golang
In this article, we will learn how to use default case to avoid deadlock. But first, we will learn what is deadlock case when using select command in Golang?
Anonymous structures and fields in Golang
Anonymous structs in Golang are temporary structures with no names used for one-time purposes, while anonymous fields allow embedding of unnamed fields.
How to use Rune in Golang
What is Rune in Golang? How to use Rune in Golang? This article will give you the answer.
How to use operators in Golang
Operators allow us to perform different types of operations on operands. In Go language, operators can be classified based on their different functions.
Void identifier in Golang
_(underscore) in Golang is called Blank Identifier. Identifier is a user-defined name of program elements used for identification purposes.
How to Install Go on Windows
Golang can be easily installed on Windows. Here is a step-by-step guide to install Golang on Windows.
The Best Diets for Heart Health
In addition to regular exercise and not smoking, diet is one of the best ways to protect your heart. Here are the best diets for heart health.
How to cure insomnia for pregnant women in the last 3 months
The third trimester is often the most difficult time to sleep during pregnancy. Here are some ways to treat insomnia in the third trimester.
Scientifically Proven Ways to Automatically Burn Calories
There are many ways to lose weight without changing anything in your diet. Here are some scientifically proven automatic weight loss or calorie-burning methods that anyone can use.
All about iOS 26
Apple has introduced iOS 26 – a major update with a brand new frosted glass design, smarter experiences, and improvements to familiar apps.
Yoga exercises to treat insomnia
Yoga can provide many health benefits, including better sleep. Because yoga can be relaxing and restorative, its a great way to beat insomnia after a busy day.
What is the flower of the other shore? Meaning and legend of the flower of the other shore
The flower of the other shore is a unique flower, carrying many unique meanings. So what is the flower of the other shore, is the flower of the other shore real, what is the meaning and legend of the flower of the other shore?
Healthy snacks that help you lose weight
Craving for snacks but afraid of gaining weight? Dont worry, lets explore together many types of weight loss snacks that are high in fiber, low in calories without making you try to starve yourself.
What to do when you have trouble sleeping?
Prioritizing a consistent sleep schedule and evening routine can help improve the quality of your sleep. Heres what you need to know to stop tossing and turning at night.
How to add a printer to Windows 10
Adding a printer to Windows 10 is simple, although the process for wired devices will be different than for wireless devices.
The most commonly deficient nutrients in the diet
Diet is important to our health. Yet most of our meals are lacking in these six important nutrients.
How to get beautiful nails quickly
You want to have a beautiful, shiny, healthy nail quickly. The simple tips for beautiful nails below will be useful for you.
The best laptops for students in 2025
Students need a specific type of laptop for their studies. It should not only be powerful enough to perform well in their chosen major, but also compact and light enough to carry around all day.
Ways to reduce the risk of birth defects in the fetus
Birth defects are something no one wants. Although they cannot be completely prevented, you can take the following steps to reduce the risk of birth defects in your baby.
How to check RAM and check RAM errors on your computer with the highest accuracy rate
As you know, RAM is a very important hardware part in a computer, acting as memory to process data and is the factor that determines the speed of a laptop or PC. In the article below, WebTech360 will introduce you to some ways to check for RAM errors using software on Windows.
Top 5 best automatic home coffee makers
The automatic home coffee maker is a modern and professional product, bringing you and your family delicious cups of coffee with just a few quick steps.