如何将ajax放入循环中? [英] How to put ajax inside a loop?

问题描述

我在循环内的ajax请求中有一个ajax请求.在这里:

I have an ajax request within an ajax request that is inside a loop. Here it is:

for (var i = 0; i < input_files.length; i++) {
 $.ajaxFileUpload({
  url : dasdasdsa,
  success : function () {
    $.ajax({
    var get_the_number_in_the_last_of_array = input_files[i].split('_').pop();
    });
  }
 });

}

放入async: false无效.如何解决这个问题?我想要的是内部ajax的每个循环都获取正确的变量i.我的代码中发生的事情是内部ajax始终获取最后一个i.

putting async: false doesnt work. How to go around this? What i want is that every loop the inner ajax gets the right variable i. What happens in my code is that the inner ajax always gets the last i.

注意:变量input_files是一个包含ID的数组，例如"my_id_number_9".最后那9个是我想要获得的.

Note: variable input_files is an array containing ids, example "my_id_number_9". That 9 in the last is what i want to get in the split.

推荐答案

使用closure传递正确的i-

for (var i = 0; i < input_files.length; i++) {

    (function (index) {
        $.ajaxFileUpload({
            url : dasdasdsa,
            success : function () {

                $.ajax({
                    var get_the_number_in_the_last_of_array = input_files[index]
                        .split('_').pop();
                });
            }
        });
    })(i);
}

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