In addition, each takes a callback that handles the returned data from the request.

另外，每个方法都接受一个处理从请求返回的数据的回调。

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As a part of the request, the callback function is also defined.

在这个请求中，还定义回调函数。

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The handle (Callback ) method is invoked each time a service request occurs.

每次发生服务请求时将会调用Handle (Callback)方法。

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Callback - a reference to a function that will be called when the request returns.

callback—指的是当请求返回时将要调用的函数的引用。

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It also invokes the response callback function to confirm the deletion after the request completes.

它还能在请求完成后调用response回调函数来确认删除。

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Then the request is set up, the callback function is assigned, and the request is sent.

之后，请求也设置好了，回调函数也已分配，请求亦发送完毕。

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Then the request is set up, the callback function is assigned, and the request is sent.

之后，请求也设置好了，回调函数也已分配，请求亦发送完毕。

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