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JavaScript Tutorial

JavaScript is THE scripting language of the Web.

JavaScript is used in millions of Web pages to add functionality, validate forms, detect browsers, and much more.

JavaScript is easy to learn! You will enjoy it!

JavaScript Examples

Learn by 100 examples!

With our editor, you can edit the source code, and click on a test button to view the result.

Test your JavaScript skills at W3Schools!

At W3Schools you will find complete references of all JavaScript objects and the HTML DOM objects.

W3Schools' Online Certification Program is the perfect solution for busy professionals who need to balance work, family, and career building.

The HTML Certificate is for developers who want to document their knowledge of HTML, XHTML, and CSS.

The JavaScript Certificate is for developers who want to document their knowledge of JavaScript and the HTML DOM.

The XML Certificate is for developers who want to document their knowledge of XML, XML DOM and XSLT.

The ASP Certificate is for developers who want to document their knowledge of ASP, SQL, and ADO.

The PHP Certificate is for developers who want to document their knowledge of PHP and SQL (MySQL).

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