11.md

The New Keyword

// The new keyword
// The new keyword creates an object of num
// which then let's us access to various methods,
// like .toFixed() in the below code.
const num = new Number(100.25);

console.log(num.toFixed(0));// 100

This Keyword

const person = {
    name: "John",
    getName() {
        console.log(this);
    },
};

person.getName(); // { name: 'John', getName: [Function: getName] }

Class

// Class is a schema for
// an object that can save
// many values

class Person {
    constructor(name, age, isWorking) {
        this.name = name;
        this.age = age;
        this.isWorking = isWorking;
    }
}

const user = new Person("John", 22, true);

console.log(user); // Person { name: 'John', age: 22, isWorking: true }

// How can we do the same thing above using
// arrow function ?

const createPerson = (name, age, isWorking) => ({ name, age, isWorking });

const user1 = createPerson("Shubham", 23, false);
console.log(user1);//{ name: 'Shubham', age: 23, isWorking: false }