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package main
import (
"encoding/json"
"os"
)
type Node struct {
Name string
Child [2]*Node
}
func main() {
a := Node{Name: "hello"}
a.Child[0] = &Node{Name: "world"}
json.NewEncoder(os.Stdout).Encode(a)
a.Child[0].Child[0] = &Node{Name: "sunshine"}
json.NewEncoder(os.Stdout).Encode(a)
}
// Output:
// {"Name":"hello","Child":[{"Name":"world","Child":[null,null]},null]}
// {"Name":"hello","Child":[{"Name":"world","Child":[{"Name":"sunshine","Child":[null,null]},null]},null]}
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