JavaScript Tutorial

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JavaScript

Tutorial

JavaScript is the world’s most popular programming language.

JavaScript is the programming language of the Web.

JavaScript is easy to learn.

This tutorial will teach you JavaScript from basic to advanced.

Examples in Each Chapter

With our “Try it Yourself” editor, you can edit the source code and view
the result.

Example

My First JavaScript


Use the Menu

We recommend reading this tutorial, in the sequence listed in the menu.

If you have a large screen, the menu will always be present on the left.

If you have a small screen, open the menu by clicking the top menu sign



.


Learn by Examples

Examples are better than 1000 words. Examples are often easier to understand
than text explanations.

This tutorial supplements all explanations with clarifying “Try it Yourself” examples.

If you try all the examples, you will learn a lot about JavaScript, in a very short time!


Why Study JavaScript?

JavaScript is one of the

3 languages

all web developers

must

learn:

1.

HTML

to define the content of web pages

2.

CSS

to specify the layout of web pages

3.

JavaScript

to program the behavior of web pages

This tutorial covers every version of JavaScript:

  • The Original JavaScript ES1 ES2 ES3 (1997-1999)
  • The First Main Revision ES5 (2009)
  • The Second Revision ES6 (2015)
  • The Yearly Additions (2016, 2017, 2018)




Learning Speed

In this tutorial, the learning speed is your choice.

Everything is up to you.

If you are struggling, take a break, or re-read the material.


Always

make sure you understand

all

the “Try-it-Yourself”
examples.

The only way to become a clever programmer is to:
Practice. Practice. Practice. Code. Code. Code !


Test Yourself With Exercises

Exercise:

Create a variable called

carName

and assign the value

Volvo

to it.

var  = "";

Start the Exercise


Commonly Asked Questions

  • How do I get JavaScript?
  • Where can I download JavaScript?
  • Is JavaScript Free?

You don’t have to get or download JavaScript.

JavaScript is already running in your browser on your computer,
on your tablet, and on your smart-phone.

JavaScript is free to use for everyone.


JavaScript References

W3Schools maintains a complete JavaScript reference, including all HTML and browser objects.

The reference contains examples for all properties, methods and events, and
is continuously updated according to the latest web standards.


JavaScript Quiz Test

Test your JavaScript skills at W3Schools!


JavaScript Exam – Get Your Diploma!

W3Schools Certification

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HTML Certificate
documents your knowledge of HTML.

The
CSS Certificate
documents your knowledge of advanced CSS.

The
JavaScript Certificate
documents your knowledge of JavaScript and HTML DOM.

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documents your knowledge of Python.

The
Data Science Certificate
documents your knowledge in Data Science.

The
jQuery Certificate
documents your knowledge of jQuery.

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SQL Certificate
documents your knowledge of SQL.

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documents your knowledge of PHP and MySQL.

The
Java Certificate
documents your knowledge of Java.

The
XML Certificate
documents your knowledge of XML, XML DOM and XSLT.

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documents your knowledge of the Bootstrap framework.