It consists of many callbacks.
它由许多回调组成。
Callbacks never run in parallel.
回调永远不能并行运行。
什么是回调？
In Listing 2, both callbacks use the same class.
在清单2中，所有的回调必须使用相同的类。
PS: Callbacks are only method calls on your object.
PS：回调是唯一的方法，你的对象调用。
The callbacks are defined in the
回调函数是在
You can set the functions here to your own callbacks.
你可以在这里设置你的回调函数。
Q promise: are callbacks invoked in the same order as registered?
问承诺：在相同的顺序调用回调注册吗？
All of these callbacks happen on the main thread of the application.
这些回调全部发生在应用程序的主线程上。
Callbacks are really a special case of the Observer Pattern [GOF1995].
回调其实是观察者模式[g OF 1995]的一个特例。
Debuggers must specifically enable callbacks that they wish to receive.
调试器必须专门启用要接收的回调。
For example, callbacks can be used to provide the details for the new identity.
例如，回调可用于为新的标识提供详细的信息。
The application USES a number of callbacks to handle the state of each asynchronous call.
应用程序使用很多回调来处理每个异步调用的状态。
The application USES a number of callbacks to handle the state of each asynchronous call.
应用程序使用很多回调来处理每个异步调用的状态。
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