Markdium-

Markdium-Go.go

package main

import (
    "encoding/json"
    "fmt"
)

type A struct {
    ValA int `json:"valA"`
    ValB int `json:"valB"`
}

var input = A{}

func main() {
    json.Unmarshal([]byte(`{"valA": 1, "valB": 1}`), &input)
    json.Unmarshal([]byte(`{"valA": 0}`), &input)
    output, _ := json.Marshal(input)
    fmt.Println(string(output))
}