如果孩子使用jQuery，则将类应用于父类

Question

How can I use jQuery when I have this HTML code I need to add the class name to the parent li only when the child has the class name high.

thanks.

<li class="emergency" style="background-color: #FE9D9D;">
<span class="high">250</span></li>

Answer 1

您可以像这样定位.high类，然后使用close（）获取父级li。

$('li .high').closest('li').addClass('myClass');

Answer 2

Use .has()

$('li:has("span.high")').addClass('className');

li has span element with class high addCass className to it.

.addclass()

Fiddle Demo

Answer 3

You can use has() :

$('li:has("span.high")').addClass('newClass');

Fiddle Demo

Answer 4

$(".high").parent().addClass('sss');

jsfiddle http://jsfiddle.net/M5gNA/

Answer 5

如果我正确理解了这个问题，您也想将span的类也添加到父li ，对吗？

$('li .high').closest('li').addClass('high');