News

IE 8 Finishes Last on Google JavaScript Test

Google last week provided an additional means for users to test JavaScript performance in Web browsers.

Users can now access a Web page that taps into the 5,000-plus tests in Google's open source Sputnik conformance test suite version 1. Running tests via this page will check the performance of JavaScript as defined in the third edition of the ECMA-262 spec, according to a Google blog.

The big winner of the Sputnik tests so far is the Opera browser, with 78 failures, according to Google's bull's-eye comparison chart. Microsoft's Internet Explorer 8 browser performed the worst (463 failures) relative to the four other browsers tested by Google.

Clumped next to Opera in the center position of the chart were Apple's Safari (159 failures), Google's Chrome (218 failures) and Mozilla's Firefox (259 failures).

The use of WebKit technology in Safari and Chrome may explain their relatively close scores in Google's Sputnik conformance test. WebKit-based browsers typically have shown high marks in Acid3 testing as well. Acid3 is a set of 100 tests designed to assess JavaScript performance and other Web technologies, such as support for CSS 3 and scalable vector graphics.

According to Google's blog, the Sputnik test runner "can be seen as a continuation of and a complement to existing browser conformance testing tools, such as the Acid3 test."

Internet Explorer 8 shows a low score (20/100) on Acid3, but Microsoft has tended to disparage that test and the company still tends to ignore it. A Microsoft official even described a low Acid3 score (32/100) for its forthcoming Internet Explorer 9 browser, which is still under wraps.

Google is currently working to make the Sputnik test suite compatible with ECMAScript 5, according to the blog. Microsoft has also initiated an effort to test ECMAScript 5 through a Microsoft CodePlex project. ("ECMAScript" is the nomenclature used in the ECMA standard, but it's more commonly known as "JavaScript.")

ECMAScript 5 was published on December 3, 2009 as part of the ECMA-262 spec. The technology in ECMAScript 5 is based on ECMAScript 3 and came about after Microsoft and Yahoo dissented against ECMAScript 4, according to Wikipedia's account.

About the Author

Kurt Mackie is senior news producer for 1105 Media's Converge360 group.

Featured

  • Microsoft Shifting Away from Office 365 Brand Name in April

    Microsoft on Monday announced coming product naming changes, where "Office 365" is mostly getting replaced by the "Microsoft 365" brand.

  • Microsoft Grows Services Amid COVID-19

    Microsoft in a Saturday announcement recapped how its services have been affected by "shelter-in-place" governmental mandates in the last week, providing details on growth stats and prioritizations.

  • Microsoft Adds 6 More Months to Expiring Certification Programs

    Microsoft has announced an extension to the end date of three certification programs slated for retirement.

  • Microsoft's Surface Pro X: It's Like the Surface RT, But Better

    There's a lot about the Surface Pro X that's reminiscent of the ill-fated Surface RT. But despite the similarities, this might just be one of the rare cases where the sequel is better than the original.

comments powered by Disqus

Office 365 Watch

Sign up for our newsletter.

Terms and Privacy Policy consent

I agree to this site's Privacy Policy.