JavaScript Object
//////////
let person = {
  age : 24,
  name : "Yusuf"
}

age, name = property 
24, "Yusuf" = value

access object
/////////////
umur = person.age
nama = person['name']

object method
/////////////
document.write("this is object method")


object constructor
////////////////////
function person(name,age){
  this.name = name;
  this.age = age;
}
var yusuf = new person("M Yusuf", 24)
console.log(yusuf.age)

adding method at object 
/////////////
function person(name, age){
  this.name = name;
  this.age = age;
  this.gantiNama = function(name){
    this.name = name;
  }
}

let yusuf = new person("MYusuf", 24)
yusuf.gantiNama("MuhYusuf")

////
javascript tidak support array assosiatif