destructuring

destructuring

Node.js

const obj = { key: 'foo', value: 'bar' }

const { key, value } = obj
console.log(key, value)

Output

foo bar

Go

package main

import "fmt"

type Obj struct {
    Key   string
    Value string
}

func (o *Obj) Read() (string, string) {
    return o.Key, o.Value
}

func main() {
    obj := Obj{
        Key:   "foo",
        Value: "bar",
    }

    // option 1: multiple variable assignment
    key, value := obj.Key, obj.Value
    fmt.Println(key, value)

    // option 2: return multiple values from a function
    key, value = obj.Read()
    fmt.Println(key, value)
}

Output

foo bar
foo bar