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The scope is an object that acts as a shared context between the view and the controller that allows these layers to exchange information related to the application model. Both sides are kept synchronized along the way through a mechanism called two-way data binding.

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Cover of AngularJS Essentials

Note

Scope 是一个对象,作为共享的情景,在视图与控制器之间。允许这些层之间交换与应用模型相关的信息。两边都是异步,使用一种叫 two-way 数据绑定的方法。