JSON HTTP響應 - 獲取單個整數

Question

我試圖顯示一個數字整數（0和1）作爲HTTP響應。我不知道如何獲得該整數並存儲它？我應該使用什麼功能？

http_request.onreadystatechange = function() { 
     if (http_request.readyState == 4) { 
      if (http_request.status == 200) { 
       // ...what goes here?... 
      } 
      setTimeout("loadJSON()", 1000); 
     } 
    } 

    http_request.open("GET", data_file, true); 
    http_request.send(); 
} 

Answer 1

AJAX的響應呼籲喜歡就是從responseText屬性訪問：

if (http_request.status == 200) { 
    doStuffWith(http_request.responseText); 
}