如何使用 jQuery 找到 td 的父 tr？
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How can I find the parent tr of a td using jQuery?
提问by Alan2
I have the following:
我有以下几点：
tdToPad = tds.filter('[id^="input_Title_"]')
pad = 60;
tdToPad.css('margin-left', pad);
What I would like to do is to remove any class that starts with "X-" and give the row that is contained by "tdToPad" a class of "X-" + pad.
我想要做的是删除任何以“X-”开头的类，并给“tdToPad”包含的行一个“X-”+ pad 的类。
Something like:
就像是：
<tr class='X-60'>
<td>
</td>
</tr>
Being that toToPad refers to the td element in a row. How can I give the parent tr the class "X-" + pad ? I think I need something like the following but if that's the correct way to do it then how can I remove elements already there with a class of "X-" somevalue and then give this element the correct class?
因为 toToPad 指的是一行中的 td 元素。我怎样才能给父母 tr 班级 "X-" + pad ？我想我需要像下面这样的东西，但如果这是正确的方法，那么我如何使用“X-” somevalue 类删除已经存在的元素，然后给这个元素提供正确的类？
tdToPad.Parent('tr')
回答by undefined
You can use closest()method:
您可以使用closest()方法：
Get the first element that matches the selector, beginning at the current element and progressing up through the DOM tree.
获取与选择器匹配的第一个元素，从当前元素开始并向上遍历 DOM 树。
tdToPad.closest('tr')
.addClass('X-' + pad)
update:
更新：
tdToPad.closest('tr').get(0).className = tdToPad.closest('tr').get(0).className.replace(/\bX\-.*?\b/g, '');
tdToPad.closest('tr').addClass('X-' + pad)
