Back in June, Google launched Sputnik, a suite of tools that runs over 5,000 tests to check a web browser’s JavaScript conformance. Last week, they made the tool a lot easier for anyone to use, with a version that works in the web browser. The results are interesting.
Notably, both the Opera and Safari web browsers beat Google’s own Chrome browser in the test. As you can see in the picture above, Opera is the clear leader, with only 78 failures (the closer to the center, the less errors). Safari came in second with 159 errors, with Chrome in third with 218 errors. Firefox is close behind with 259 errors, while Internet Explorer is the outlier with 463 errors.
These tests were run on Windows machines, with the latest released version of each browser. Using the web tool on my Mac, though, shows similar results (at least for Opera, Chrome, Safari, and Firefox — there is no IE for Mac anymore).
While much of the focus on JavaScript is about speed (that’s what the SunSpider test measures, for example), Sputnik is interesting because it focuses on conformity, making it more like the Acid3 test, which tests web standards compliance. Chrome, Safari, and Opera have all passed Acid3, with Firefox getting very close (94/100 for Firefox 3.6). IE, meanwhile, again lags behind with just 20/100 for IE8. And even the new IE9 preview only scores 55/100.
Speaking of IE9, I tried to run the Sputnik tool in the preview build of the new browser on Windows 7. Unfortunately, it completely shut down several times after getting up to about 50 failures after only a few hundred of the 5,000+ tests — not a good sign. But again, it’s just a very early preview release of the browser, and early SunSpider results for the browser have been good.
Opera is a web browser and Internet suite developed by Opera Software. Opera handles common Internet-related tasks such as displaying web sites, sending and receiving e-mail messages, managing contacts, IRC online chatting, downloading files via BitTorrent, and reading web feeds. Opera is offered free of charge for personal computers and mobile phones, but for other devices it must be paid for.
Safari is a web browser developed by Apple. First released as a public beta on January 7, 2003 on the company’s Mac OS X operating system, it became Apple’s default browser beginning with Mac OS X v10.3, commonly known as “OS X Panther.” Apple has also made Safari the native browser for the iPhone OS.
Google Chrome is an based on the open source web browser Chromium which is based on Webkit. It was accidentally announced prematurely on September 1, 2008 and slated for release the following day. It premiered originally on Windows only, with Mac OS and Linux versions released in early 2010. Features include: Tabbed browsing where each tab gets its own process, leading to faster and more stable browsing. If one tab crashes, the whole browser doesn’t go down with it A...
Firefox is a Web browser created Mozilla Corporation. Since its release in 2002 (as Phoenix 0.1, later named as Firebird then Firefox as of 0.8 to present), the browser has become one of the most popular Web browsers in the market, trailing only Microsoft’s Internet Explorer as of July 2009.
Windows Internet Explorer (IE), formerly Microsoft Internet Explorer, is the primary graphical web browser developed by Microsoft for the Windows Operating System. The most recent release of IE is Internet Explorer 8, released in March of 2009. It is the most widely-used internet browser. Microsoft Internet Explorer was originally released as a Plus! Package for Windows 1995. Internet Explorer 8 features faster loading, predictive URL bar, Web slicing and increased security. Microsoft has some relevant videos on IE8.
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