Go Brain Teasers

Puzzle 23

Who’s Next?

next_id.go

package main

import (
        "fmt"
)

var (
        id = nextID()
)

func nextID() int {
        id++
        return id
}

func main() {
        fmt.Println(id)
}

Guess the Output
	Try to guess what the output is before moving to the next page.

This code will not compile.

Building the code shows the problem:

$ go build next_id.go
# command-line-arguments
./next_id.go:8:2: initialization loop:
 /home/miki/Projects/go-brain-teasers/code/next_id.go:8:2: ...