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! JavaScript Examples »

What is JavaScript? JavaScript is the programming language of the web. It can update and change both HTML and CSS. It can calculate, manipulate and validate data.

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The W3Schools JavaScript Tutorial is comprehensive and beginner-friendly. It will give you a fundamental knowledge of JavaScript. It is designed for beginners and requires no prior experience with programming. The content has been carefully made to be bite-sized, simple, and easy to understand.

JavaScript Quickstart Tutorial. This tutorial will take a quick look at the most important JavaScript data types. JavaScript variables can be: Numbers; Strings; Objects; Arrays; Functions

Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

JavaScript uses the keywords var, let and const to declare variables. An equal sign is used to assign values to variables. In this example, x is defined as a variable.

A JavaScript function is a block of code designed to perform a particular task. A JavaScript function is executed when "something" invokes it (calls it).

JavaScript is easy to learn. This tutorial will teach you JavaScript from basic to advanced. Start to learn JavaScript with this tutorial: https://www.w3schools.com/js/default.asp

Common uses for JavaScript are image manipulation, form validation, and dynamic changes of content. To select an HTML element, JavaScript most often uses the document.getElementById() method. This JavaScript example writes "Hello JavaScript!"