javascript - 带有数据变量的 json 请求 - 如何读取函数中的变量？

Question

从名为 bunchOfData 的数组中加载一堆 json 文件。 .url 是每个 json 文件的 url。

如何在 processData 函数中读取我的变量“myI”？

for(var i = 0; i < bunchOfData.length; i++){
        $.getJSON(bunchOfData[i].url, {"myI":i}, function(ds){}).success(processData);

        function processData(ds){
            console.log(ds.myI); //undefined
        }
    }

Answer 1

function successHandler(i){
    console.log('i is instantiated/stored in the closure scope:',i);
    return function(data, textStatus, jqXHR){ 
        // here, the server response and a reference to 'i'
        console.log('i from the closure scope:',i, 'other values',data,textStatus,jqXHR);
    }            
}

var i = 0; i < bunchOfData.length; i++){
    $.getJSON(bunchOfData[i].url, {"myI":i}, function(ds){}).success(successHandler(i));

}