Tutorial Playlist

JavaScript Tutorial: Learn JavaScript from Scratch


An Introduction to JavaScript: Here Is All You Need to Know

Lesson - 1

JavaScript Hello World: Here's What You Need To Know

Lesson - 2

All You Need to Know About JavaScript Arrays

Lesson - 3

Using Array Filter In JavaScript to Filter Array Elements

Lesson - 4

Everything You Need to Know About Array Reduce JavaScript

Lesson - 5

Introduction To JavaScript Loops: Do-While, For, For-In Loops

Lesson - 6

All You Need to Learn About Javascript Functions

Lesson - 7

The Best Guide on How to Implement JavaScript Closures

Lesson - 8

JavaScript “This” Keyword and How to Implement It

Lesson - 9

How to Implement JavaScript Form Validation

Lesson - 10

An Introduction Guide To JavaScript RegEx

Lesson - 11

How to Validate an Email Address in JavaScript?

Lesson - 12

All You Need to Know About JavaScript Promises

Lesson - 13

How to Implement JavaScript Async/Await

Lesson - 14

JavaScript DOM Tutorial: 2020 Edition

Lesson - 15

JavaScript Objects: Properties, Methods, and Accessors

Lesson - 16

An Introduction to Javascript Games: The Best Guide

Lesson - 17

An Easy Guide To Build A Calculator App In JavaScript

Lesson - 18

Javascript Projects: The Best Guide

Lesson - 19

What is OOP in JavaScript? How is it Implemented?

Lesson - 20

The Best Guide to Understanding JavaScript Learning Path

Lesson - 21

Java Vs .NET: Which Is the Best Technology to Choose?

Lesson - 22

Top 40 JavaScript Interview Questions You Should Know

Lesson - 23

Typeof in JavaScript: Checking Data Types Using the Typeof Operator

Lesson - 24

Tips and Tricks That You Should Know Before Going to a Coding Interview

Lesson - 25

Callback Functions in JavaScript

Lesson - 26

JavaScript Events

Lesson - 27
JavaScript Tutorial: Learn JavaScript from Scratch
  • Intermediate
  • 27 Lessons
  • 2 hrs of Learning
Watch Tutorials

Tutorial Highlights

  • Not to be confused with Java, JavaScript—created by Netscape Communications—first appeared in 1995.
  • JavaScript makes web pages more dynamic and user-friendly so that they respond to visitors’ actions. JS became one of the prime programming languages due to its ease of learning and versatility.
  • In our JavaScript tutorial you will learn all about it from JS arrays to loop, and promise to regex and closure. The tutorial also covers critical aspects like JS dom, website projects and functions, and objects, and also prepares you for a JavaScript interview. So start learning now and become a pro at programming!

Skills Covered

  • Array
  • Function
  • Object
  • Promise
  • Regex
  • Closure
  • Dom
  • JavaScript for loop

Topics Covered

The topics covered in the JavaScript tutorial are:

Why Learn JavaScript?

JavaScript is the most used programming language for the client side. A lot of famous firms have their websites for client-side coded in JS like Facebook, YouTube, Yahoo, Amazon, etc. JS is also used beyond web development for things like app development for iOS/Android, cross-platform desktop app development.

JS is also being used with new-age technologies like cloud-based computing, Big Data, IoT, etc. which makes it an important language to learn and to stay connected with the modern-day technological revolutions. And all of this is just one click away - start learning with our JS tutorial now!

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Applications and Use Case of JavaScript

Some major applications of JS are as follows:

1. Web Development

JS is preferred to make webpages interactive & dynamic. Whenever special effects are required on a web page like supporting widgets, flash messages, rollover graphics, etc., JavaScript is preferred.

2. Web Applications

JS helps in increasing user engagement on a web page through special effects. It is also used to create web applications across platforms. For example, when you click on any location on Google Maps, an expanded version of that location opens on the map. It all happens in just one tap due to JS. A lot of other web applications that are prominent in the market today are coded in JS.

3. Server Applications

JS is used to create application servers that help in installing and hosting applications/services for end-users.

4. Web Servers

The delivery and storage of web pages to end-users are done through web servers. JS helps in creating web servers through Node.js, which is an open-source environment and uses JS on the server-side.

5. Gaming

A lot of visual effects and design of games are created using JS. The programming language helps in creating animations via easing (Ease JS).

6. Mobile Applications

A lot of mobile applications for iOS & Android are coded in JS. React Native framework also lets coders use their knowledge of JS and code mobile applications which will work for both iOS or Android.

7. Automation

JS is used for creating automated services. It is being used with IoT and robotics to create smart and intelligent systems. For example, Node JS can be used for programming a flying robot.

You can too become a part of any of these amazing developments - all you need to do is start learning this JS tutorial!

Who Should Learn JavaScript Tutorials?

In case you have a keen interest in developing games, automation applications, or creating more interactive web pages JavaScript is where you need to focus, and our JavaScript tutorial is where you start!

JavaScript Tutorial: Table of Contents

Lesson 1: Introduction to JavaScript Loops

Loops are programming constructs that are used to execute a set of instructions of code repeatedly. In this lesson of the JavaScript tutorial, you will learn about the various iterative statements used in JavaScript, like do-while, for, and for-in loops.

Lesson 2: All You Need to Know About JavaScript Arrays

An array is a data structure in javascript which is used to store a list of values of the same data type. You will learn about array operations and methods in this JavaScript tutorial lesson. You will also learn about MapReduce and Filter.

Lesson 3: All You Need to Know About JavaScript Promises

If a function keeps waiting for a resource for performing a network request, it might take more time, and while the function awaits the next step, the entire execution freezes. In order to solve this problem, asynchronous programming comes into play. With the ‘promise’ feature you can perform and execute the next steps without changing or stretching the main execution thread. Know all about JavaScript Promises in this lesson of the JavaScript tutorial.

Lesson 4: All You Need to Know About JavaScript Functions

This lesson of the JavaScript tutorial will help you learn all about JavaScript functions - everything about the declaration, syntax, and working.

Lesson 5: JavaScript Objects

In this lesson of the Javascript tutorial, you will learn about objects, how to create one, its properties, methods, and accessors. Objects are an essential part of any Object-oriented programming language, which makes it very important to learn the concept properly, making you ready for real-world applications.

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Lesson 6: How to Implement JavaScript Closures?

You will learn what is variable scope, types of variable scope, and closures in JavaScript 

Lesson 7: How to implement JavaScript Async/Await?

JavaScript is undoubtedly gaining popularity amongst web developers and in this lesson, you will learn its key feature, that is, JavaScript async/await, that are asynchronous programming constructs. These are built on top of promises and generators to express asynchronous actions inline. To learn all about synchronous programming, asynchronous programming, JavaScript async functions in this JavaScript tutorial. The list doesn’t end here: you will get demos for both JavaScript async and await.

Lesson 8: JavaScript Hello World

By the time you reach this lesson, you will know quite a few concepts of the language. So what’s the next step? Coding? Of course, Yes! Learn further about Javascript applications in this JS tutorial and write the ‘Hello World’ program too!

Lesson 9: How to Implement JavaScript Form Validation?

A web application is meant to be interactive and should be smart enough to validate the information stored by the end-user. And here’s where JavaScript Form Validation comes into play! Just like the name goes - form validation - checks and validates whether or not the provided information or data is accurate or not. Learn all about it in this lesson of the JavaScript tutorial.

Lesson 10: JavaScript ‘This’ Keyword and Ways to Implement it

This lesson of the JavaScript tutorial covers all of the basics you need to know about JavaScript “this” keyword, and also introduce the concept of reference, and finally acquaint you with the “this” keyword on a global and local scope. 

Lesson 11: An Introduction Guide to JavaScript RegEx

This lesson will take you through JavaScript regular expressions, flags, patterns, metacharacters, and quantifiers. 

Learn 12: JavaScript DOM 

JavaScript accesses the contents of a webpage making use of Document Object Model (DOM) which is created by the browser when a webpage is rendered. Wondering what it would be like? Javascript tutorial is your answer to it! Learn all about DOM now.

Get Started with JavaScript Tutorial Now!

The JS tutorial is your first step towards a successful web development career and will help you understand various concepts of JavaScript from event handling to conditional to, classes, and JS hoisting. So start learning this JS tutorial and get a step closer to your dream job role!

About the Author


Simplilearn is one of the world’s leading providers of online training for Digital Marketing, Cloud Computing, Project Management, Data Science, IT, Software Development, and many other emerging technologies.

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