2008年8月17日

YUI 3.0 Preview Release 1

Yahoo!User Interface(簡稱YUI)發佈了大改版的3.0 Preview Release 1,在這個網站上已經有提供官方文件,而下載則可以到SourceForge。對於YUI 3的改進,YUI的部落格寫了五個主要的目標
  • 更輕巧 (less K-weight on the wire and on the page for most uses)
  • 更快速 (fewer http requests, less code to write and compile, more efficient code)
  • 更一致性 (common naming, event signatures, and widget APIs throughout the library)
  • 更具威力 (do more with less implementation code)
  • 更安全 (safer and easier to expose to multiple developers working in the same environment; easier to run under systems like Caja or ADsafe)
對於開發者關心的版本相容議題,YUI部落格很明確地說了:
No. YUI 3.0 builds off of the YUI 2.x codeline, but we’ve evolved most of the core APIs in working toward the five key goals described above. As a result, migrating from YUI 2.x to 3.x will require effort at the implementation level.
YUI 3的改版已經聲明不向前相容,也就是先前使用YUI開發的網站,若想升級使用這個版本,很可能需要大幅的改寫,是否要負擔的這個成本,就要仔細考慮一下效益了。雖然還沒正式Release,等發行可能需要再個幾個月(Beta Release是在十月份),但如果已經決定要採用YUI當框架,還是早一點測試和使用YUI3比較保險。

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