Golang Generate Random Number

Golang random number generator needs a seed in order to really generate a random number. Without seed, if you ran the randomizer 10 times now and 10 times a minute later, you will notice that the numbers produced are the same.

package main
import (
  "fmt"
  "time"
  "math/rand"
)
func main() {
  for z:=0; z<9; z++ {
    rand.Seed(time.Now().UTC().UnixNano())
    fmt.Println("My favorite number is", rand.Intn(10))
  }
}

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