What's New in JavaScript
This document lists new features in JavaScript. These features are supported in both Internet Explorer 10 and Windows Store apps.
To find out which JavaScript elements are supported in Internet Explorer 10 but deprecated in Windows Store apps, see JavaScript Version Information.
Important
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To find out about creating Windows Store apps built for Windows using JavaScript, including information about the Visual Studio JavaScript editor and other features, see Develop Windows Store apps using Visual Studio 2012 . |
Strict Mode
Strict mode is a way to introduce additional run-time constraints and error-checking into your code. For more information, see Strict Mode (JavaScript).
Typed Arrays
You can use typed arrays to handle binary data from sources such as network protocols, binary file formats, and raw graphics buffers. For more information, see Typed Arrays (JavaScript).
Windows Runtime
You can use the Windows Runtime in Windows Store apps. For more information, see Using the Windows Runtime in JavaScript.
Web Workers
The Internet Explorer Web Workers API provides a way to add background workers that run in parallel with the main page. For more information, see About Web workers.
async Attribute
The async attribute of the script element. When this attribute is set to true, the script will be executed while the page is being parsed. For more information, see async attribute and Asynchronous script execution.
