Methods in Go

Flavio CopesOctober 19, 2022Less than 1 minute

Methods in Go 관련

The Go Handbook – Learn Golang for Beginners

Golang is an awesome, simple, modern, and fast programming language. It’s compiled, open source, and strongly typed. Golang – also called Go – was created by Google engineers with these main goals: make their projects compile (and run) faster be sim...

The Go Handbook – Learn Golang for Beginners

You can assign a function to a struct, and in this case we call it a method.

Example:

type Person struct {
    Name string
    Age int
}

func (p Person) Speak() {
    fmt.Println("Hello from " + p.Name)
}

func main() {
    flavio := Person{Age: 39, Name: "Flavio"}
    flavio.Speak()
}

You can declare methods to be pointer receiver or value receiver.

The above example shows a value receiver. It receives a copy of the struct instance.

This would be a pointer receiver that receives the pointer to the struct instance:

func (p *Person) Speak() {
    fmt.Println("Hello from " + p.Name)
}