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

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 …

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

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

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

Copy Values Tool Example values can be copied from the tutorial and into your spreadsheet, making it easy for you to tag along step-by-step:

This tutorial follows Bootstrap 3, which was released in 2013. However, we also cover newer versions; Bootstrap 4 (released 2018) and Bootstrap 5 (released 2021).

We recommend reading this tutorial, in the sequence listed in the left menu. C++ is an object oriented language and some concepts may be new. Take breaks when needed, and go over …

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