没有父表标签的td [英] td without parent table tag
问题描述
HTML:
<td class="tabletd"> text one </td><br>
<td class="tabletd" id="tdSecond"> this is next td</td>
<button onclick="myFunc()">click</button>
JS:
function myFunc() {
var second = document.getElementById('tdSecond').innerHTML;
//var second2 = document.getElementsByTagName('td')[1]; //gives error undefined
alert(second);
}
我无法完成这项工作.甚至CSS也没有影响，请参见 JSFiddle .
但是，如果我们使用<li>而没有其父级<ul>，则javascript和CSS都可以正常工作.
并且javascript和CSS在自定义标签上也可以正常工作.例如:-<ddd> text </ddd>
I cannot make this work. Even there is no effect of css see JSFiddle.
But both javascript and css work fine if we use <li> without its parent <ul>.
And also javascript and css work fine on custom tag. for eg:- <ddd> text </ddd>
那么，如果我们使用<td>而没有其父级<table>的话，为什么在CSS和javascript上都出现错误?
So why we get error on both css and javascript if we use <td> without its parent <table> ?
推荐答案
如果您检查chrome中的元素，您会注意到代码已更改为以下内容:
If you inspect the element in chrome you will notice the code has changed to the following:
<body>
text one <br>
this is next td
<button onClick="myFunc()">click</button>
<script type="text/javascript">//<![CDATA[
function myFunc() {
var second=document.getElementById('tdSecond').innerHTML;
alert(second);
//var second2=document.getElementsByTagName('td')[1].innerHTML;
//alert(second2);
}
//]]>
</script>
</body>
td元素已被浏览器删除，因为它们无效.
The td elements have been stripped by the browser as they are not valid.
这篇关于没有父表标签的td的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
