const user = {
  
  "intro":  {
    "name" : "Saud",
    "age" : 20,
    "qualification": "BS Computer"
  },
  
  "address": {
    "country" : "Pakistan",
    "province" : "KP",
    "city" : "Mardan"
  },
  
  userIntro(){
    return `Name: ${this.intro.name}, age: ${this.intro.age}, qualification: ${this.intro.qualification}`;
  },

  userAddress(){
    return `country: ${this.address.country}, province: ${this.address.province}, city: ${this.address.city}`
  }
}

// let name = user.intro.name;
// console.log(name);

let userData = user.userIntro();
console.log(userData);

let addressData = user.userAddress()
console.log(addressData);