从getJSON调用的函数获取返回值 [英] Get returned value from function called by getJSON

问题描述

如果$.getJSON()成功获取JSON数据，则将调用一个函数，如下所示.如何捕获返回的值output?

If $.getJSON() succeeds in getting the JSON data, then a function is called, as shown below. How do I catch the returned value output?

$.getJSON(url, function(data) {
     // Do stuff with data if succeeds in getting the data
     return output;
     }
);

推荐答案

由于您希望在回调完成时调用另一个函数，因此应在回调本身中执行此操作.它是异步调用的，结果不在下一行.所以:

Since you want to invoke another function when the callback finishes, you should do that in the callback itself. It is invoked asynchronously and the result is not there on the next line. So:

$.getJSON(url, function(data) {
     // Do stuff with data if succeeds in getting the data
     $.getJSON(data, function() { .. });
  }
);

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