javascript！=不起作用

javascript != not working

本文关键字：不起作用 javascript      更新时间：2023-09-26

我已经编写了一个脚本。但不等于操作员的工作不正常

 if((ajax.responseText) != "success"){
                    alert("nice oneagain");
                    alert(ajax.responseText);
                    _(submiit).style.display = "block";
                    _(status).innerHTML = '';
                } else {
                    alert("Complaint escalated");
                    _(status).innerHTML = 'Complaint escalated';
                }

在这里，即使服务器返回ajax.responseText=success，它也从不进入else。并且每次只执行if部分。

if((ajax.responseText.toString().trim()) != "success"){
                    alert("nice oneagain");
                    alert(ajax.responseText);
                    _(submiit).style.display = "block";
                    _(status).innerHTML = '';
                } else {
                    alert("Complaint escalated");
                    _(status).innerHTML = 'Complaint escalated';
                }

//instead of checking for responseText check for readystate and status
<script>
if(ajax.readyState==4 && ajax.status ==200){
    alert("nice oneagain");
    alert(ajax.responseText);
    _(submiit).style.display = "block";
    _(status).innerHTML = '';
} else {
    alert("Complaint escalated");
    _(status).innerHTML = 'Complaint escalated';
}
 <script>
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