jQuery addClass example

Change class name on click in jQuery

by Dmitri Ganenco

HTML

<select name="test">
        <option  value="1">Пункт 1</option>
        <option  value="2">Пункт 2</option>
        <option  value="3">Пункт 3</option>
        <option  value="4">Пункт 4</option>
    </select>

    <div>
    <ul>
    <li class="parent result-selected">one</li> (selected option)
    <li class="active-result">two</li>
    <li class="active-result">three</li>
    <li class="active-result">four</li>

    </ul>
    </div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

#banner-message {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  font-size: 25px;
  text-align: center;
  transition: all 0.2s;
  margin: 0 auto;
  width: 300px;
}

button {
  background: #0084ff;
  border: none;
  border-radius: 5px;
  padding: 8px 14px;
  font-size: 15px;
  color: #fff;
}

#banner-message.alt {
  background: #0084ff;
  color: #fff;
  margin-top: 40px;
  width: 200px;
}

#banner-message.alt button {
  background: #fff;
  color: #000;
}

JavaScript

$('select').on('change', function(e){
debugger;
const selectedLi = $('ul').children().filter('.parent.result-selected');
if(selectedLi.length > 0){
	$(this).attr('name', 'parent');
}
});