Day 8 || Introduction of JavaScript || Variable || Data types || Operators

JavaScript Topics  

Day 8 :

•      Introduction

•     Variable

•     Data Types

•     Operators

Variable :

var bag = 'Hello world';

console.log(bag)

Data Types:

var name = "Mahesh";

var age = 25;

var isMarried = false;

var love = null;

var address;

console.log(name)

console.log(age)

console.log(isMarried)

console.log(love)

console.log(address)

Operators:

// Product: iPhone

// var iPhonePrice = 150000;

// var discountPercentage = 25;

// var discountAmount =(iPhonePrice * discountPercentage)/100;

// console.log("Discount Amount: " + discountAmount + " Rupees");

var a = 5;

var b = 6;

// console.log(a == b);

// console.log(a === b);

// console.log(a != b)

// console.log(a < b)

console.log(a > b);

Task:

Interview Questions:

1. What is the difference between null and undefined in JavaScript?

2. What is the significance of the typeof operator?

3. Explain the difference between == and === in JavaScript?