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golang struct
Restu Wahyu Saputra
on Mar 08, 2021
package main
import (
"encoding/json"
"fmt"
"log"
)
// sigle struct
type Contact struct {
id int
name string
phone int
}
// nested struct
type ShowRoom struct {
address string
location string
postalcode int
}
// sub nested struct
type Car struct {
id int
name string
price float32
showroom ShowRoom
}
// same struct type defination
type Person struct {
Firstname, Lastname string
}
// json struct
type Book struct {
Name string `json:"name"`
Price float32 `json:"price"`
Author string `json:"author"`
}
// struct as parameter
func GetContact(contact Contact) {
fmt.Println("get struct with as parameter", contact)
}
// read struct with method
func (supercar Car) GetSuperCar() {
fmt.Println("read struct with method", supercar)
}
func main() {
var ContactPerson Contact
var SuperCar Car
var Biodata Person
abstractStruct := struct {
Name string
Age int
}{
Name: "john doe",
Age: 23,
}
var MyBook Book
ContactPerson.id = 1
ContactPerson.name = "john doe"
ContactPerson.phone = 87887242895
NewContactPerson := Contact{2, "jane doe", 8777888555666}
GetContactPointer := &ContactPerson
SuperCar.id = 1
SuperCar.name = "lambogini"
SuperCar.price = 1.500000000
SuperCar.showroom.address = "jl.nusantara kap 50 - 51"
SuperCar.showroom.location = "depok"
SuperCar.showroom.postalcode = 163353
Biodata.Firstname = "aldi"
Biodata.Lastname = "khan"
MyBook.Name = "hary potter"
MyBook.Price = 50.000
MyBook.Author = "jk.rolling"
json, err := json.Marshal(MyBook)
fmt.Println("read struct step one", ContactPerson)
fmt.Println("read struct step two", NewContactPerson)
fmt.Printf("read struct by key %v\n", ContactPerson.name)
GetContact(ContactPerson)
fmt.Println("read struct with pointer", *GetContactPointer)
fmt.Println("read struct by key with pointer", (*GetContactPointer).phone)
fmt.Println("read nested struct", SuperCar)
fmt.Println("read nested struct with key", SuperCar.showroom.location)
SuperCar.GetSuperCar()
fmt.Println("read struct with same type defination", Biodata)
fmt.Println("read abstract struct", abstractStruct)
if err != nil {
log.Fatal(err)
} else {
fmt.Println("read struct with json style", string(json))
}
}go structs
DevLorenzo
on Jan 12, 2021
// A struct is a type. It's also a collection of fields
// Declaration
type Vertex struct {
X, Y int
}
// Creating
var v = Vertex{1, 2}
var v = Vertex{X: 1, Y: 2} // Creates a struct by defining values with keys
var v = []Vertex{{1,2},{5,2},{5,5}} // Initialize a slice of structs
// Accessing members
v.X = 4
// You can declare methods on structs. The struct you want to declare the
// method on (the receiving type) comes between the the func keyword and
// the method name. The struct is copied on each method call(!)
func (v Vertex) Abs() float64 {
return math.Sqrt(v.X*v.X + v.Y*v.Y)
}
// Call method
v.Abs()
// For mutating methods, you need to use a pointer (see below) to the Struct
// as the type. With this, the struct value is not copied for the method call.
func (v *Vertex) add(n float64) {
v.X += n
v.Y += n
}go struct methods
Splendid-est Swan
on Jun 12, 2020
type Person struct {
name string
surname string
}
func (p Person) GetName() string {
return p.name
}
func (p Person) GetSurname() string {
return p.surname
}All those coders who are working on the Go based application and are stuck on go structs can get a collection of related answers to their query. Programmers need to enter their query on go structs related to Go code and they'll get their ambiguities clear immediately. On our webpage, there are tutorials about go structs for the programmers working on Go code while coding their module. Coders are also allowed to rectify already present answers of go structs while working on the Go language code. Developers can add up suggestions if they deem fit any other answer relating to "go structs". Visit this developer's friendly online web community, CodeProZone, and get your queries like go structs resolved professionally and stay updated to the latest Go updates.
