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Wysłany: Czw 7:35, 10 Mar 2011 Temat postu: Safari's JavaScript performance |
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Safari's JavaScript performance
Safari's JavaScript performance
Apple has released the free iOS 4.3 update for the iPhone, iPad, and iPod touch,[link widoczny dla zalogowanych], goosing Safari's JavaScript performance, adding a [link widoczny dla zalogowanych] handful of new features not available on all models, and providing a flurry of security updates, all two days before it's set to appear on the iPad 2. Cupertino also rolled out Xcode 4, the latest version of its combined Mac OS X and iOS development environment. The full Xcode 4 package, which includes the Xcode IDE, Instruments, iOS Simulator, and the Mac OS X and iOS SDKs, is free to registered developers and $4.99 for normal humans at the Mac App Store at the Mac App Store.
Xcode was previously free, by the way, bundled with Mac OS X installer discs or downloadable. But as we've said many time, Apple has never met a revenue stream it didn't like – like most companies. We installed the iOS 4.3 update on our [link widoczny dla zalogowanych] iPad and iPhone 3GS using iTunes' automatic upgrade capability, a process that took a goodly amount of time: the iPad upgrade weighed in at 596.9MB, the iPhone version at 423.3MB.
Safari in iOS 4.3 has been juiced by WebKit's Nitro JavaScript engine, which appeared in Safari for the Mac last June when version 5 was released. Apple claims that the new version "runs JavaScript up to twice as fast as in [link widoczny dla zalogowanych] iOS 4.2," citing performance on the SunSpider 0.9.1 JavaScript benchmark. We noticed snappier performance on some websites, but frankly nothing to write home about, seeing as how our connection to the intertubes here at Vulture Annex isn't exactly FiOS quality.
Topics related articles:
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