如何在页面加载之前首先在 function 中运行 httprequest？

Question

Ive tried on load atribute in body tag without success我试过在body标签中加载属性但没有成功

<body onload=\"updateGroup()\">

nor function calling inside echo: echo "<script> updateGroup(); </script>";也不是 function 在 echo: echo "<script> updateGroup(); </script>";

I'm open to critics!我对批评持开放态度！

function updateGroup(){
            
            var http = new XMLHttpRequest();
            var url = \"../requests/updateGroup.php\";
            http.open(\"POST\", url, true);

            //Send the proper header information along with the request
            http.setRequestHeader(\"Content-type\", \"application/x-www-form-urlencoded\");

            http.onreadystatechange = function() {//Call a function when the state changes.
              if(http.readyState == 4 && http.status == 200) {
                
              }
            }
            http.send();
          }

Answer 1

I believe what your looking for is an iife .我相信您正在寻找的是iife 。 This should run even before document.ready这甚至应该在 document.ready 之前运行

(updateGroup() {
 ....
})();

如何在页面加载之前首先在 function 中运行 httprequest？

问题描述

1 个解决方案

解决方案1
0 2020-08-01 16:40:19

如何在页面加载之前首先在 function 中运行 httprequest？

问题描述

1 个解决方案

解决方案1 0 2020-08-01 16:40:19

解决方案1
0 2020-08-01 16:40:19