在NG-应用指令的位置（HTML VS体） [英] Placement of the ng-app directive (html vs body)
问题描述
我最近回顾了code与角度建立了一个Web应用程序，发现它是用 NG-应用=MyModule的指令放在写的＆LT;身体GT; 标记。在学习的角度，我只看过它用在＆LT; HTML＆GT; 标签，所推荐的角文档的here ，这里，并在他们的<一个HREF =http://docs.angularjs.org/tutorial/step_00>教程。
I recently reviewed the code for a webapp built with angular and found that it was written with the ng-app="myModule" directive placed on the <body> tag. When learning angular, I've only ever seen it used on the <html> tag, as recommended by the angular docs here, here, and in their tutorial.
我这个探索我自己了一下，发现SO问题，值得注意的的这个同样这个，即讨论加载多个模块的网页。但是，这种技术从我的情况不同，因为它涉及配售NG-应用上的元素中的 的身体，使用手动引导在同一时间运行两个角的应用程序。
I've explored this a bit on my own and found SO questions, notably this one and similarly this one, that discuss loading multiple modules for a page. However, this technique different from my case, as it involves placing ng-app on elements within the body and using manual bootstrapping to run two angular apps at the same time.
据我所知，有一个在应用程序之间运行时使用 NG-应用在＆LT没有差别; HTML＆GT; 或＆LT;身体GT; 。据我了解， NG-应用指定角应用程序的根，所以它的＆LT安置;身体GT; 将削减＆LT; HEAD＆GT; 出棱角分明的范围，但我想不出任何主要方式，这将影响到的东西。所以我的问题是：什么是对这些标签，而不是其他的东西之间放置 NG-应用的技术差异
As far as I can tell, there is no difference at runtime between an app with ng-app on <html> or <body>. As I understand it, ng-app designates the root of an angular application, so placement of it on the <body> would cut <head> out of angular's scope, but I can't think of any major way this would affect things. So my question is: What are the technical difference between placing ng-app on one of these tags instead of the other?
推荐答案
有就是你把 NG-应用。
如果你把它放在＆LT;车身方式＆gt; 那么你有AngularJS一个较小的范围，即略更快
If you put it on <body> then you have a smaller scope for AngularJS which is slightly faster.
不过，我已经使用 NG-应用在＆LT; HTML＆GT; 用于操纵＆LT;标题方式＆gt;
But I have used ng-app on the <html> for manipulating the <title>.
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