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HTML Exercises Many chapters in this tutorial end with an exercise where you can check your level of knowledge.

Python Examples Learn by examples! This tutorial supplements all explanations with clarifying examples. See All Python Examples

Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may …

Learn JavaScript The programming language of the Web. JavaScript is easy to learn. This tutorial covers everything from basic JavaScript up to the latest 2025 version. Start learning …

Click on the "Run example" button to see how it works. We recommend reading this tutorial, in the sequence listed in the left menu.

Examples in Each Chapter This CSS tutorial contains over 700 CSS examples. With our online editor, you can edit the CSS, and click on a button to view the result.

PHP Tutorial PHP is a server scripting language, and a powerful tool for making dynamic and interactive web pages.

XPath Standard Functions XPath includes over 200 built-in functions. There are functions for string values, numeric values, booleans, date and time comparison, node manipulation, …

What You Will Learn This tutorial will give you a solid understanding of: What is XML? How does XML work? How can I use XML? What can I use XML for?