complete
deferred.promise(jqXHR).complete = completeDeferred.add; 这段有问题吧? //complete 应该指向deffered.always jqXHR.complete = jqXHR.always
ddsoma
2015-09-18
1 回答
completeDeferred=jQuery.Callbacks("once memory");
deferred.promise(jqXHR).complete = completeDeferred.add;
var fucTemp=function(f){};
deferred.promise(jqXHR).complete(fucTemp)=>
completeDeferred.add(fucTemp);所以，调用ajax的complete 添加回调方法时，实际上是在向completeDeferred的这个Callbacks中添加回调。
在最后，ajax得到请求内容后，会调用completeDeferred中的回调队列
completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] ); //callbackContext：为回调环境 => callbackContext = s.context || s //[ jqXHR, statusText ]：回调方法的参数
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