Tour of Go Fibonacci

fibonacci.go

package main

import "fmt"

func fibonacci() func() int {
	n1 := 1
	n2 := 0
	return func() int {
		n1, n2 = n2, n1+n2
		return n1
	}
}

func main() {
	f := fibonacci()
	for i := 0; i < 10; i++ {
		fmt.Println(f())
	}
}