多個jQuery ajax調用;如何將回調與請​​求相關聯？

Question

如果你是動態創建Ajax請求，因爲他們來異步地執行成功回調，你怎麼能知道是由每個回調回應什麼要求？

例子：

我有n個問題的陣列和服務器還給了答案：

var questions = Array("What's your name?", "What's your mom's name?", "What's your pet's name?"); 
for (var i=0; i<questions.length; i++) { 
      $.get ("server.php", { "Question" : questions[i] }, 
        function(data) { 
         /* I want to process answer, but at this time I cannot access the value of i, 
          so what's question is being answered ? */ 
        }, "json"); 
} 

Answer 1

嘗試下一個：

$.get("server.php", { "Question" : questions[i] }, 
    function(data) { 
     alert("success. The next question is being answered: "+questions[i]); 
    }, "json") 
    .done(function() { alert("second succes. This question has been answered:" + questions[i]); }) 
    .fail(function() { alert("Error answering this question: " +questions[i]); }) 

您可以在發送回答什麼問題也被回答，所以你在數據變量中有這些信息。

工作測試：

var questions = Array("What's your name?", "What's your mom's name?", "What's your pet's name?"); 
for (var i=0; i<questions.length; i++) { 
    sendGet(questions[i]); 
} 

function sendGet(question) { 
    $.get("server.php", { "Question" : question }, 
    function(data) { 
     alert("success. The next question is being answered: "+question); 
    }, "json") 
    .done(function() { alert("second succes. This question has been answered:" + question); }) 
    .fail(function() { alert("Error answering this question: " +question); }) 
}