Safari问题，变量未定义(XML/Javascript)

Safari issues, variable undefined (XML/Javascript)

本文关键字：XML Javascript 未定义 问题 变量 Safari      更新时间：2023-09-26

我有这段代码，它适用于所有浏览器，除了Safari:

        // Create a connection to the file.
        var Connect = new XMLHttpRequest();
        // Define which file to open and
        // send the request.
        Connect.open("GET", "<?php echo $fileName;?>", false);
        Connect.setRequestHeader("Content-Type", "text/xml");
        Connect.setRequestHeader("Cache-Control", "no-cache");
        Connect.send();
        // Place the response in an XML document.
        var TheDocument = Connect.responseXML;
        // Place the root node in an element.
        var questions = TheDocument.childNodes[0];
        // Retrieve each customer in turn.
        for (var i = 0; i < 1; i++) {
            console.log(i);
            console.log("fake var");
            var question = questions.children[0];
            console.log(question);
        }

变量$filename是指向我正在阅读的XML文件的php链接。我有以下问题，代码运行到For循环，我可以记录var"I"，和"假var"。但一旦我定义var问题为问题。Children[0]，代码停止。我无法在safari中记录问题变量。

任何想法?(也欢迎反馈，仍在学习javascript/xml)

我的XML示例:

<?xml version='1.0' encoding="UTF-8" ?>
<Beantwoordt_kritiek id="1" admin="Jan Hut" categorie="Omgaan met elkaar" winswf="images/Kado (1).jpg">
  <gebruikers_vraag1>
    <vraag><![CDATA[Sleep de puzzelstukken naar het juiste vakje.]]></vraag>
    <s_vraag><![CDATA[sounds/puzzel.mp3]]></s_vraag>
    <thumb1><![CDATA[images/527puzzel1_1.jpg]]></thumb1>
    <thumb2><![CDATA[images/527puzzel1_2.jpg]]></thumb2>
    <thumb3><![CDATA[images/527puzzel1_3.jpg]]></thumb3>
    <thumb4><![CDATA[images/527puzzel1_4.jpg]]></thumb4>
    <vraagFoto><![CDATA[images/527puzzel1.jpg]]></vraagFoto>
  </gebruikers_vraag1>
</Beantwoordt_kritiek>

您可以使用这个脚本，这样safari会返回相同的结果。

<script>
function getChildren(element) {
  if (element.children == undefined) {
    var childNodes = element.childNodes
    var children = []
    for(var i = 1; i < childNodes.length; i += 2) {  // take every second element
      children.push(childNodes[i]);
    }
    return children;
  } else {
    return element.children
  }
}
</script>

然后在脚本中调用它

var question = getChildren(questions)[0];
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