jquery：函數參數在成功回調中未定義

Question

我想在成功回調中訪問graphList，但graphList是未定義的。我提到了this StackOverflow後。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

新增創建如下getGraphList功能，我可以成功回調內部訪問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 
    } 
}); 
}