Microsoft has released a new Internet Explorer 10 preview,
the second pre-release of Internet Explorer 10 designed to give developers
access to the new technologies that Internet Explorer 10 will deliver. The new
version includes support for a bunch of new specifications, enabling better
support for drag and drop, form validation, positioning of page elements, and
more. As with prior preview releases, Microsoft has also provided a number of
demo sites to show off new capabilities, and new test cases to demonstrate
exact conformance with the HTML5 specifications.
This update comes 11 weeks after the first
preview release, making it a little ahead of schedule; Internet Explorer 9
previews came out roughly every eight weeks, but for Internet Explorer 10,
Microsoft is aiming at one every three months.
Probably the most significant inclusion for Web
developers is support for the Web Worker API. Conventionally, browser
JavaScript has been strictly single-threaded, with no facility to perform
computations in the background or use multicore processors. Web Workers change
this, by allowing multiple scripts to execute simultaneously, opening the door
to pages that are both more responsive and contain more complex scripting than
is possible without Web Workers.
Test drive of this shown as shown in below pic.
 |
| IExplorer 10 test drive |
