objectPartTwo.js

// // console.log("Hello World")
// const portfolio = new Object();
// console.log(portfolio); //{}
// portfolio.name = "waseem akram";
// portfolio.skil = "web developer";
// portfolio.age = 20;
// console.log(portfolio);

const portfolio = {
  name: "waseem akram",
  age: 20,
  skil: "web developer",
  isgoodAtJavascript: true,
};
// console.log(portfolio)

// const user = {
//   userId: 1,
//   userName: {
//     fullName: {
//       firstName: "waseem",
//       lastName: "Akram",
//     },
//   },
// };
//console.log(user.firstName); // undefined.

//console.log(user.userName.fullName.firstName); // waseem
//console.log(user.userName.fullName.lastName); // Akram

const obj1 = { 1: "a", 2: "b", 3: "c" };
const obj2 = { 4: "d", 5: "e", 6: "f" };
//const obj3 = Object.assign({}, obj1, obj2); //this will copy the obj1 and obj2 into {} empty new object which is called target and the obj1 and obj2 are source.
//console.log(obj3);
const obj = Object.create(null); // array which has null
const obj4 = { __proto__: null }; //[object:null prototype] {}
//console.log(obj4)

const obj3 = { ...obj1, ...obj2 }; //destructuring.
//console.log(obj3);

const obj5 = { ...obj1, ...obj2, ...obj3 };
//console.log(obj5); //it will give only sum of obj1 and obj2.

const obj6 = { ...obj1, ...obj2, ...obj3, ...obj4 };
//console.log(obj6); //osm

//console.log(Object.keys(portfolio)); //return keys
//console.log(Object.values(portfolio)); // return values
//console.log(Object.entries(portfolio)); // return the multiples arrays which have one key and value .

console.log(portfolio.hasOwnProperty("name")); // true
console.log(portfolio.hasOwnProperty("isgoodAtJavascript")); // true