category2category3category4等是动态创建的。我想添加和删除一些称为active的类,例如class="category2 active"

这是我尝试将.active类添加到动态创建的类dynamic-class *中的代码,但是它不起作用:



if (count == 1) {
  $('.dynamic-class' + count).removeClass('active');
  $('.dynamic-class' + 2).addClass('active');
}
if (count == 2) {
  $('.dynamic-class' + count).removeClass('active');
  $('.dynamic-class' + 1).addClass('active');
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="film_listing live_tv">
  <div class="col-sm-2"><img id="11665" class="dynamic-class1" src="images/movies/flowerstv.jpg"></div>
  <div class="col-sm-2"><img id="11666" class="dynamic-class2" src="images/movies/flowerstv.jpg"></div>
</div>

最佳答案

按类名选择时缺少.。请尝试以下方法:

if (count == 1) {
    $('.dynamic-class' + count).removeClass('active');
    count++;
    $('.dynamic-class' + count).addClass('active');
}
if (count == 2) {
    $('.dynamic-class' + count).removeClass('active');
    count--;
    $('.dynamic-class' + count).addClass('active');
}

关于javascript - 如何将类添加到动态创建的DOM元素或类中,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/52293643/

10-10 00:22