Methods
Receivers
type Vertex struct {
X, Y float64
}
func (v Vertex) Abs() float64 {
return math.Sqrt(v.X * v.X + v.Y * v.Y)
}
v := Vertex{1, 2}
v.Abs()
See: Methods
Mutation
func (v *Vertex) Scale(f float64) {
v.X = v.X * f
v.Y = v.Y * f
}
v := Vertex{6, 12}
v.Scale(0.5)
// `v` is updated
See: Pointer receivers