javascript - ES6(4) Object

Object create

const healthObj = {
  showHealth : function(){
    console.log(this.healthTime)
  }
}
const myHealth = Object.create(healthObj)
myHealth.healthTime = "4"
myHealth.name="dongha"

console.log(myHealth) // { healthTime: '4', name: 'dongha' }

Object assign

const healthObj = {
  showHealth : function(){
    console.log(this.healthTime)
  }
}

const myHealth = Object.assign(Object.create(healthObj), {
  name: "dongha",
  lastTime: "11:20"
})

console.log(myHealth) // { name: 'dongha', lastTime: '11:20' }

const previousObj = {
name: "dongha",
lastTime:"11:23"
}

const myHealth = Object.assign({}, previousObj, {"lastTime" : "12:30"})

console.log(myHealth)  // { name: 'dongha', lastTime: '12:30' }

setPrototypeOf

const healthObj = {

showHealth : function(){
  console.log(`${this.time}`)
  },
setTime : function(_time){
  this.time = _time
  }
}

const myHealth = {
  name: "dongha",
  lastTime:"33:22"
}

Object.setPrototypeOf(myHealth, healthObj)