Tour of Go 2.0

Pointers to structs

You can access struct fields through a pointer to a struct — no extra steps needed.

Technically, you’d write (*p).X to dereference p and then access X. But Go lets you drop the parentheses and just write p.X. It means the same thing and is much easier to read.

Try it: Change the value assigned to p.X and watch v update — they point to the same data.

main.go ▶ Run in Playground 
package main

import "fmt"

type Vertex struct {
	X int
	Y int
}

func main() {
	v := Vertex{1, 2}
	p := &v
	p.X = 1e9
	fmt.Println(v)
}