This is because the regular person tag is a server-side component that cannot currently be called from JS code.
这是因为规范的个人标签，是一个服务器端的构件，目前还不能从JS代码中对其进行访问。
Once I got up to speed with JS, AIR was a huge win both in terms of speed of development and flexibility.
用上JS我就驾轻就熟了。AIR在开发速度和灵活性两方面都是巨大的成功。
The JS Kongo also participated, tracking the targets and conducting a successful simulated intercept. The target fell harmlessly into the Pacific Ocean.
“金刚”级驱逐舰也参与了上次演习，跟踪了目标并成功模拟了拦截。
You will then learn how to create a more complex extension which changes the functionality of an existing Ext JS class and adds some new features.
然后，您将学习如何创建一个更复杂的扩展，可以修改一个已有ExtJS类的功能以及添加一些新特性。
There has never been an easy way to create custom themes in Ext JS, and this continues to be a disappointment.
在ExtJS中从来没有一个轻松的方法来创建自定义主题，现在这仍然是一个让人失望的地方。
Extensions are best used when you need to change core functionality of an existing Ext JS component or feature, or when you want to build a brand new component altogether.
扩展最好在您需要改变一个已有ExtJS功能或特性的核心功能时，或者在您想要构建一个全新的组件时使用。
They leverage the power of Ext JS data stores, a common object in the library used for linking data to other popular UI components, such as grids.
它们利用了ExtJS数据存储的能力和库中一个用于将数据连接到其他UI组件(如网格)的通用对象。
Thankfully, ext JS includes a powerful class and component ecosystem that makes it easy to extend existing features or build new components entirely.
谢天谢地，ExtJS包含一个功能强大的类和组件生态系统，可以轻松地扩展现有特性或者完全构建新组件。
One of the loaded scripts, json2.js, is a popular library that provides useful code for JSON processing.
其中一个载入脚本json2.js是一个流行的库，为JSON 处理提供有用的代码。
Ext JS provides you with a rich set of tools to create interactive forms.
ExtJS提供一组用来创建交互式表单的工具。
You then learned how to create an ext JS extension-a browser window that subclassed the Ext.Window component.
然后您学习了如何创建一个ExtJS扩展—子类化ext. Window组件的一个浏览器窗口。
The user community plays a key role in the enhancement of the Ext JS framework, and several user extensions have gone on to become standard components in the framework itself.
用户社区在增强ExtJS框架中起到很重要的作用，甚至有几个用户扩展已经变成框架本身的标准组件了。
As shown in Figure 3, Ext JS also provides tree controls, which provide users with a familiar file system-like view.
如图3所示，ExtJS还提供树控件，这种控件提供用户熟悉的与文件系统相似的视图。
The first big update to Ext JS 3.0 was the introduction of a new distribution called Ext Core.
ExtJS 3.0的第一个大的更新就是引入了一个新的发行版ExtCore。
Listing 6 shows a typical ext JS Ajax implementation: an HTML text field and button element that posts data in the text field to a Web server when the button is clicked.
清单6给出一个典型的ExtJS Ajax实现：当单击按钮时，HTML文本框和按钮元素把文本框中的数据发送给Web服务器。
A nice feature of using plug-ins in Ext JS is that multiple plug-ins can be attached to a single component, providing additional functionality as required.
在ExtJS中使用组件的一个特点就是，多个插件可以被附加到一个组件上，根据需要提供附加功能。
That would enable non-JS users to re-sort the data too, giving them a slightly less responsive, but still full-functional “hi-fi” experience.
这使得没有JS的用户也能重新对数据排序，虽然响应速度稍微慢些，但仍然是功能齐全的“高保真”体验。
This is a very basic example of an ext JS extension, but it could easily be extended further to include some more features.
这是ExtJS扩展的一个最基础的示例，但是它很容易进一步扩展来包括一些更多的特性。
Ext JS solves the problem of managing HTML and CSS to provide a UI look and feel that rivals desktop applications.
ExtJS解决了管理HTML和CSS的问题，提供了媲美桌面应用的UI外观。
An extension for ext JS is a derived class or a subclass, which is designed to allow the inclusion of additional features to existing ext JS classes.
ExtJS的扩展是从类或者子类衍生出来的，为支持现有Ext JS类包含附加特性而设计的。
Original equipment manufacturer (OEM)/reseller license: This license would be most appropriate if you plan to repackage or sell Ext JS as a software development library.
原始设备生产商（OEM）/转售商许可证：如果您打算对ExtJS进行重新打包，或者作为软件开发库销售 Ext JS，这种许可证是最合适的。
Jesus: I began with ext JS back in early 2006, when it was a set of extensions for the YUI library.
Jesus：我从2006年初就开始使用ExtJS，当时它只是YUI库的一个扩展集。
Creating a theme for Ext JS 3.0 is more straightforward than in previous versions, but because components are image-heavy, it leaves the solution half-done.
为ExtJS 3.0创建主题比以前版本更加直接，但由于组件需要大量图片，该解决方案尚未完工。
Coupled with these new tools to speed adoption and reduce learning curve, Ext JS is a RIA development platform worthy of consideration.
在能够加速接受过程和降低学习门槛的新工具的配合下，ExtJS是值得考虑的RIA开发平台。
JS: Web Service based applications which can rely on a simpler programming model and composition.
JS：那些可以依赖一个简单的编程模型和组合的基于WebService的应用最适合使用sca。
With support for chart types such as line, column, pie, and stacked bar, Ext JS charts can find a place in most applications.
有了对如折线图、柱状图、饼图、堆叠条形图的图表类型的支持，ExtJS 图表在很多应用程序中有了用武之地。
I have been a part of Ext JS projects in the past where I wished for this feature, but didn't have enough time to do it myself.
我曾在一个ExtJS项目中想要实现这个特性，但没有足够时间自己实现。
Ext JS is a for-profit company and certainly supports different models based on the intended use (open source, commercial, and OEM).
ExtJS是一家以盈利为目的的公司，根据不同的使用目的（开源、商业和 OEM）支持不同的模式。
At first it can be difficult to appreciate the difference between an extension and a plug-in in ext JS, particularly given their similarities in terms of what they do.
首先，在ExtJS中很难分辨扩展和插件之间的不同，尤其是考虑到它们在使用时的相似性。
Although this new distribution is merely an abstraction of the full Ext JS library, it does bring a new mindset to development with Ext JS.
尽管这个新的发行版仅仅是完整Extjs库的抽象，但却引入了Ext JS开发的新思维。
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