Javascript Tutorial For Beginners

Join us in learning JavaScript, the essential programming language of the internet. Our comprehensive course will guide you through the fundamentals of JavaScript and provide you with the skills and knowledge to confidently apply it to your projects.

Through a series of interactive lessons and hands-on exercises, you will progress from the basics to advanced concepts, learning by example and completing practical projects along the way.

Introduction to JavaScript

Let's start by learning what JavaScript is, and why it is so important.

What is JavaScript?

JavaScript is a programming language that is primarily used to create interactive and dynamic websites.

It is one of the three core technologies of the World Wide Web, along with HTML for defining the structure and content of a web page, and CSS for defining the style and layout of a web page.

It is often used to add interactivity to websites, such as responding to user events (like clicks or hovers), modifying the content or appearance of a web page, or creating simple animations.

It is also commonly used to build web applications and automate tasks.

JavaScript is an ideal choice for creating interactive web pages that can run without the need for constant communication with a server.

best javascript tutorial

History of JavaScript

JavaScript was first developed in the mid-1990s by Netscape, a company that was at the forefront of the early web. It was originally intended to be a simple scripting language for adding interactivity to web pages.

It was created by Netscape programmer Brendan Eich in just 10 days, and it was first introduced in the Netscape Navigator 2.0 browser in 1995.

The language was initially called LiveScript, but it was later renamed to JavaScript to capitalize on the popularity of Java.

Today, JavaScript is used by millions of developers around the globe, and it is supported by all modern web browsers. Infact it is the most popular programming language in the world.

javascript created by Brenden Eich
Brenden Eich

Uses of JavaScript

Javascript is significantly utilized for web development but nowadays it is also used for many other things, including:

Javascript is now everywhere you can do front-end, back-end, mobile app development, desktop app development, game development, application testing, and many more.

JavaScript syntax and data types

JavaScript syntax refers to the set of rules that govern how the language should be written and structured. Some basic elements of JavaScript syntax include:

JavaScript also supports multiple different data types such as:

Comparison to other programming languages

Here is a table comparing JavaScript to other popular programming languages:

LanguagePopular UsePlatformType SystemSyntaxCommunityPerformance
JavaScriptWeb developmentCross-platformDynamicSimpleLargeFast
JavaWeb, mobile, desktopCross-platformStaticVerboseLargeFast
C#Windows, webWindowsStaticVerboseModerateFast
PythonWeb, scientificCross-platformDynamicSimpleLargeModerate

Advantages of JavaScript

Here are some of the advantages of JavaScript:

Practical examples of using JavaScript

Here are some practical examples of using JavaScript:

Declaring variables:

Variables store data that is used later in the program. They are declared using the var, let, or const keywords.

// Declare a variable 'x' and assign it the value 10
let x = 10;

Using operators:

In programming you can use various types of operators to perform operations on variables and values, like arithmetic operators (+, -, *, /, %), assignment operators (=, +=, -=, *=, /=, %=), comparison operators (==, !=, >, <, >=, <=), etc.

let a = 10;
let b = 20;

let c = a + b;
let d = a - b;

if...else statement:

It help you perform different actions based on different conditions.

let age = 18;

if (age >= 18) {
  console.log("You are an adult");
} else {
  console.log("You are a child");

Loop (for loop, while loop, do...while loop):

Loops are used to execute a block of code repeatedly until a certain condition is met.

# for loop
for (let i = 0; i < 10; i++) {

# while loop
let i = 0;
while (i < 10) {

Declaring functions:

Functions are a block of code that can be called from anywhere in the program. They are declared using the function keyword.

// Declare a function 'add' that takes two parameters 'a' and 'b'
function add(a, b) {
  return a + b;

// Call the function 'add' with the arguments 5 and 10
let result = add(5, 10);

learn javascript through projects

In the programming world the more you make projects better you understand concepts and the more you become creative, so our JavaScript tutorial for beginners has lots of projects for you to easily start with making web projects.

Here is a collection of JavaScript projects that you should create as a beginner.

JavaScript topics to learn

Here is a list of JavaScript topics and other related useful articles: