如果存在子类，则将类添加到父div

Question

I have the following code:

<div class="uk-dropdown uk-dropdown-navbar">
    <div class="sclogin sourcecoast">        
    </div>
</div>

and I want to use jQuery to add a class called large to the parent div if sclogin and sourcecoast classes are present in the child div. So the result would be:

<div class="uk-dropdown uk-dropdown-navbar large">
    <div class="sclogin sourcecoast">        
    </div>
</div>

Any idea?

Thanks!

Answer 1

您可以使用：

$('.sclogin.sourcecoast').parent().addClass('large');

Answer 2

您可以使用.has（）

$('.uk-dropdown-navbar').has('.sclogin.sourcecoast').addClass('large')