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JavaScript Language Reference

JavaScript - Internet Explorer 10

JavaScript is a scripting language that can be embedded in web pages and other applications.

This documentation describes the Microsoft implementation of JavaScript, which is compliant with the ECMAScript Language Specification 5th Edition. It also provides additional features that are not included in the ECMA Standards.

You can use JavaScript code in browser applications together with HTML, CSS and the Document Object Model (DOM), which represents HTML and browser objects.

For information about HTML, see HTML/XHTML Reference.
For information about CSS, see Cascading Style Sheets.
For information about the DOM, see Document Object Model (DOM).

You can also use JavaScript code in Windows Store apps. Windows Store apps are a new type of application that runs on Windows 8 and can be developed in Visual Studio 2012.

For information about JavaScript in Windows Store apps, see JavaScript roadmap.
For information about HTML and CSS in Windows Store apps, see HTML/CSS for Windows Store apps.
For information about the Windows Runtime and Windows Library for JavaScript APIs, see API reference for Windows Runtime and Windows Library for JavaScript.
For information about using the Windows Runtime API with JavaScript, see Using the Windows Runtime in JavaScript.

The JavaScript editor in Visual Studio 2012 provides IntelliSense support. For more information, see JavaScript IntelliSense.

In This Section

The following sections provide more information about JavaScript.

What's New in JavaScript: Describes new features in JavaScript.
JavaScript Fundamentals: Provides an introduction to the basic structures in JavaScript.
Advanced JavaScript: Explains advanced JavaScript functionality, such as recursion, arrays, troubleshooting, and so on.
JavaScript Reference: Explains the elements of the JavaScript language.

Other Resources

Document Object Model