ajax成功后调用javascript函数

问题描述：

我正在使用以下测试代码在成功块之后从ajax方法调用javascript函数，并将成功值传递给javascript函数.现在我想从ajax调用中获取javascript返回消息.它总是返回null.

I am using the below test code to call a javascript function from ajax method after the success block and pass the success value to a javascript funtion.It's working fine. Now i want to get javascript return message from ajax call. It always return null.

    $.ajax({
      url:"getvalue.php",  
      success:function(data) {
         var retval= change_format(data); 
         alert(retvl);//always return null
         I can't get the result
      }
   });


function change_format(data)
{
 do something.....
 value = "Some Data"; having some data
 return value;
}

答

向您的testAjax函数添加回调

 function testAjax() {
    $.ajax({
      url:"getvalue.php",  
      success:function(data) {
         var retval= change_format(data); 
         alert(retvl);//always return null
         arguments[0](retvl);
        // I can't get the result
      }
    });
}




function change_format(a) {
    // do everything here
}

testAjax(change_format);

ajax成功后调用javascript函数

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