At W3Schools you will find complete references about HTML elements, attributes, events, color names, entities, character-sets, URL encoding, language codes, HTTP messages, browser support, and more:

W3Schools is optimized for learning and training. Examples might be simplified to improve reading and learning. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot …

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 …

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The W3Schools online code editor allows you to edit code and view the result in your browser

W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.

W3Schools is optimized for learning and training. Examples might be simplified to improve reading and learning. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot …

Note: This is an optional feature. You can study at W3Schools without creating an account.

SQL References At W3Schools you will find a complete reference for keywords and functions:

If you already have some backend experience, you should know that you can use W3Schools Spaces to build, test and deploy backend code as well. Learn More A list of other popular languages can be …