Golang concurrency using method example and pizza orders

pizza.go

package main

import (
	"fmt"
	"sync"
)

type PizzaOrder struct {
	orderNum int
	flavor   string
}

func main() {
	var wg sync.WaitGroup
	orders := []*PizzaOrder{
		{orderNum: 0}, {orderNum: 1}, {orderNum: 2},
		{orderNum: 3}, {orderNum: 4}, {orderNum: 5},
	}
	wg.Add(len(orders))
	for _, o := range orders {
		go func(p *PizzaOrder) {
			defer wg.Done()
			p.makePizza()
		}(o)
	}
	wg.Wait()
	for _, order := range orders {
		fmt.Printf("%v\n", *order)
	}
}

func (p *PizzaOrder) makePizza() {
	name := []string{"pepperoni", "double cheese", "gourmet", "vegie", "margherita", "meat"}
	p.flavor = name[p.orderNum]
}