Category: Go/GoLang

Preface In this section we will learn how to program networks in Go. Currently, there are a lot of libraries written by external coders that support network programming very well. However, we will use the built-in Go library package net because this default library is quite powerful already. TCP Server We will first write a […]

Preface Jaw hash (English: Hash) are functions that do the job of turning an ordinary string of values ​​into another, shorter and of a fixed length, which is also known as a hash. The hash will be used for searching and indexing in the database, because when we need to find something in the database […]

Preface In this section we will learn about data types List in Go. In addition to the list data types that we have learned about such as arrays, slices, and maps, Go provides another data type: List included in the package container/list. List Type List Package container/list In fact, it is the structure of the Double-linked […]

Preface In previous articles we have seen a struct variable type named error. In this section we will take a closer look. If you have been programming Java, C #, PHP … then you are probably familiar with the concept Exception error – Exception, This error has another name Runtime ErrorIf not, then I say […]

Preface In this section we will learn how to read and write files. Read the file We will write a code that opens a text file with the following content to read: Hello World Here is the code that opens the file to read: package main import ( “fmt” “os” ) func main() { file, […]

Preface Package io in Go only contains a few functions, the rest are mostly interfaces, of which two main interfaces are Reader and Writer. Reader contains functions that support reading (input) data, Writer contains functions that support data writing (export). Most functions in Go take parameters as variables Reader or Writer this. Example package with […]

Preface Go has packages strings supports very powerful string manipulations. Functions that manipulate strings Package strings Provides several functions to work with string Usually used as follows: package main import (     “fmt”     s “strings” ) func main() {     fmt.Println(“Contains: “, s.Contains(“test”, “es”))     fmt.Println(“Count: “, s.Count(“test”, “t”))   […]

Preface In this section we will learn about program control commands for, if and switch. The for command Assuming we need to print the numbers 1 through 10 on the screen, we can write 10 instructions fmt.Println() as follows: package main import “fmt” func main() { fmt.Println(1) fmt.Println(2) fmt.Println(3) fmt.Println(4) fmt.Println(5) fmt.Println(6) fmt.Println(7) fmt.Println(8) fmt.Println(9) […]

Preface In this section we will learn about variables in Go. Out Variables are places to store data, a variable consists of 2 parts: variable name and data type. For example: package main import “fmt” func main() {     var x string = “Hello World”     fmt.Println(x) } The above program code prints […]

Preface In this section, we will learn more about the available data types in Go, array, slice, and map. Array An array (or array) is a collection of elements of the same data type lying in succession. We declare an array in Go as follows: var x [5]int Inside x is the name of the […]