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

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

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.

SQL Tutorial SQL is a standard language for storing, manipulating and retrieving data in databases.

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

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

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

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?

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 …