document.querySelector在一个元素中包含多个数据属性 [英] document.querySelector multiple data-attributes in one element

问题描述

我正在尝试使用document.querySelector找到一个具有多个数据属性的元素：

I'm trying to find an element with document.querySelector which has multiple data-attributes:

<div class="text-right" data-point-id="7febe088-4eca-493b-8455-385b39ad30e3" data-period="current">-</div>

我想过这样的事情：

document.querySelector('[data-point-id="7febe088-4eca-493b-8455-385b39ad30e3"] [data-period="current"]')

但它不起作用。但是，如果我把第二个数据属性放在像

but it does not work. However, it works well, if I put the second data-attribute in a child-element like

<div class="text-right" data-point-id="7febe088-4eca-493b-8455-385b39ad30e3"> <span data-period="current">-</span> </div>

那么，是否可以同时搜索这两个属性？我已经尝试了几个选项，但我没有得到它。

So, is there an option to search for both attributes at once? I've tried several options but I don't get it.

推荐答案

2个选择器之间不应该有空格

There should not be a space between the 2 selectors

document.querySelector('[data-point-id="7febe088-4eca-493b-8455-385b39ad30e3"][data-period="current"]')

如果你在它们之间留一个空格它将成为后代选择器，即它将搜索元素属性 data-period =当前这是一个元素，其中 data-point-id =7febe088-4eca-493b-8455-385b39ad30e3喜欢

if you give a space between them it will become a descendant selector, ie it will search for an element attribute data-period="current" which is inside an element with data-point-id="7febe088-4eca-493b-8455-385b39ad30e3" like

<div class="text-right" data-point-id="7febe088-4eca-493b-8455-385b39ad30e3">
    <div data-period="current">-</div>
</div>

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