javascript属性值问题

Question

<script type="text/javascript">
var randomnumber=Math.floor(Math.random()*10000);
var sr = 'http://www.example.com/example.js?rnd='+randomnumber;
document.write("<script type=\"text/javascript\" src=\"" + sr + "\"  id-value-test=\"100\" >    </script>");
</script>

在 id-value-test 获取未终止的字符串文字。任何想法？

Answer 1

在进行HTML解析时，浏览器不会解析JavaScript，因此它们会在找到的第一个</script>序列处停止 - 即使它是在字符串文字或JavaScript注释中。

要避免它，只需执行任何操作即可中断字符串中的</script>，例如：

<script type="text/javascript">
var randomnumber=Math.floor(Math.random()*10000);
var sr = 'http://www.example.com/example.js?rnd='+randomnumber;
document.write("<script type=\"text/javascript\" src=\"" + sr + "\"  id-value-test=\"100\" >    <\/script>");
<!-- Change is here -----------------------------------------------------------------------------^  -->
</script>

或

<script type="text/javascript">
var randomnumber=Math.floor(Math.random()*10000);
var sr = 'http://www.example.com/example.js?rnd='+randomnumber;
document.write("<script type=\"text/javascript\" src=\"" + sr + "\"  id-value-test=\"100\" >    </" + "script>");
<!-- Change is here ----------------------------------------------------------------------------^  -->
</script>