The new version of Internet Explorer 10 that's part of the
recently released Windows 8 Release Preview OS included a number of changes and additions; that includes improvements made in running JavaScript-based applications found on websites. In the newest post on the official Internet Explorer blog, Microsoft goes into a lot of detail about how the IE 10 team has made improvements in JavaScript performance.
Web sites, even ones that don't have a lot of interactive features, still might use JavaScript for features like social networking or running banner ads. Microsoft states that IE 10 runs on a revised version of the JavaScript engine Chakra, which was first launched in IE 9. For the launch of IE 10, the blog states that the Internet Explorer team evaluated a number of popular JavaScript website simulations as well as games such as Angry Birds and Cut The Rope. The blog states:
