himeshvats19

function Country(name, traveled) {
   this.name = name ? name : 'United Kingdom';
   this.traveled = Boolean(traveled); // transform to a boolean
}
Country.prototype.travel = function() {
  this.traveled = true;
};
// Constructor invocation
var france = new Country('France', false);
// Constructor invocation

himeshvats19

class City {
  constructor(name, traveled) {
    this.name = name;
    this.traveled = false;
  }
  travel() {
    this.traveled = true;
  }
}
// Constructor invocation

himeshvats19

var rabbit = { name: 'White Rabbit' };
function concatName(string) {
  console.log(this === rabbit); // => true
  return string + this.name;
}
// Indirect invocations
concatName.call(rabbit, 'Hello ');  // => 'Hello White Rabbit'
concatName.apply(rabbit, ['Bye ']); // => 'Bye White Rabbit'

himeshvats19

var numbers = {
  array: [3, 5, 10],
  getNumbers: function() {
    return this.array;    
  }
};
// Create a bound function
var boundGetNumbers = numbers.getNumbers.bind(numbers);
boundGetNumbers(); // => [3, 5, 10]
// Extract method from object

himeshvats19

class Point {
  constructor(x, y) {
    this.x = x;
    this.y = y;
  }
  log() {
    console.log(this === myPoint); // => true
    setTimeout(()=> {
      console.log(this === myPoint);      // => true
      console.log(this.x + ':' + this.y); // => '95:165'

himeshvats19

class Animal {
  constructor(name) {
    this.speed = 0;
    this.name = name;
  }
  run(speed) {
    this.speed += speed;
    alert(`${this.name} runs with speed ${this.speed}.`);
  }
  stop() {

himeshvats19

class Rabbit {
  constructor(name) {
    this.name = name;
  }
  hide() {
    alert(`${this.name} hides!`);
  }
}

let rabbit = new Rabbit("My rabbit");

himeshvats19

class Rabbit {
  constructor(name) {
    this.name = name;
  }
  hide() {
    alert(`${this.name} hides!`);
  }
}

let rabbit = new Rabbit("My rabbit");

himeshvats19

class Animal {
  constructor(name) {
    this.speed = 0;
    this.name = name;
  }
  run(speed) {
    this.speed += speed;
    alert(`${this.name} runs with speed ${this.speed}.`);
  }
  stop() {

himeshvats19

class Animal {
  constructor(name) {
    this.speed = 0;
    this.name = name;
  }
  run(speed) {
    this.speed += speed;
    alert(`${this.name} runs with speed ${this.speed}.`);
  }
  stop() {