在jQuery hasClass选择器回调？

Question

$('.box').hasClass('done').removeClass('hide');

I want to remove hide from .box which has class done, but it doesn't work with above code. I'm very new to jquery.

Answer 1

只是追加类.done ，所以它只会针对具有两个元素box和done类，然后删除hide从它使用类removeClass

$('.box.done').removeClass("hide");

Answer 2

As @AmitJoki answer you append class .done with .box class

$('.box.done').removeClass('hide');

You can see Demo here.