jquery：函數參數在成功回調中未定義

Question

我試圖在成功回調中訪問graphList，但graphList未定義。 我提到了這個 StackOverflow帖子。 但是，我無法訪問elem。 任何幫助，將不勝感激。

getGraphData = function (graphList) {
 $.ajax({
 type: "GET",
 url: 'someURL',
 beforeSend: function(xhr){},
 success: function(result) {
   console.log(result);
   console.log(graphList);//undefined
 }
});
}

Answer 1

添加了如下創建getGraphList函數，我可以在成功回調中訪問getGraphList

var graphList;
var promise = graphInit(response);
promise.done(function(data){
  getGraphData(data.graphs)
}

graphInit = function(response,graphList){
  getGraphList = function(){return response.graphs;}
}

getGraphData = function (graphList) {
  $.ajax({
  type: "GET",
  url: 'someURL',
  beforeSend: function(xhr){},
    success: function(result) {
    console.log(result);
    console.log(graphList);//undefined
    graphList = getGraphList();//available
  }
});
}