A Tour of Go The new function

The expression new(T) allocates a zeroed T value and returns a pointer to it.

var t *T = new(T)

or

t := new(T)

package main 

import "fmt"

type Vertex struct {
    X,Y int
}
func main() {
    v :=new(Vertex)
    fmt.Println(v)
    v.X, v.Y = ,
    fmt.Println(v)
}