shahab570

function Doctor(name, surname) {
  this.name = name;
  this.surname = surname;
  this.father = null;
}

var Mikel = new Doctor("Mikel", "Jordan");
var Russel = new Doctor("Russel", "Domingo");

Mikel.father = Russel;

shahab570

function information({
  name = "Mickel",
  age = 50,
  country = "USA",
  state = "New York",
}) {
  console.log(name, age, country, state);
}
var person = {
  name: undefined,

shahab570

function information({ name, age, country, state }) {
  console.log(name, age, country, state);
}
var person = {
  name: "John Doe",
  age: 30,
  country: "USA",
  state: "New York",
};
information(person);    //John Doe 30 USA New York

shahab570

let USA = {
  city: {
    chicago: "Beautiful",
    Houston: "Charming",
  },
  press: ["CNN", "Fox"],
  president: "Donald Trump",
};

let {

shahab570

let x, y, z;
({ x, y, z } = { x: 100, y: 200, z: 300 });
console.log(x);   //100
console.log(y);   //200
console.log(z);   //300

shahab570

let information = {
  firstName: "John",
  lastName: "Doe",
  city: "New York",
};

let { firstName, ...last } = information;
console.log(last.lastName);     //Doe
console.log(last.city);         //New York

shahab570

let information = {
  firstName: "John",
  lastName: "Doe",
  city: "New York",
};

let { firstName: f, city: c } = information;
console.log(f); //John
console.log(c); //New York

shahab570

let information = {
  firstName: "John",
  lastName: "Doe",
  city: "New York",
};

let { firstName, city } =  information;
console.log(firstName);  //John
console.log(city);      //New York

shahab570

const x = {
  name: "John",
  age: 52,
};

for (var [key, value] of Object.entries(x)) {
  console.log(key + " " + value);    
}

shahab570

let user = {};
[user.name,user.surname] = "john Doe".split(" ");
console.log(user.name);          //john
console.log(user.surname);       //Doe