jQuery addClass example

Change class name on click in jQuery

by Dmitri Ganenco

HTML

<div id="banner-message">
  <p>Hello World</p>
  <button>Change color</button>
</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

function searchFunction() {

  $("body").toggleClass('sigf', $("#searchinput").val().toUpperCase().length < 2);

  $("#itemlist").find('li').each(function() {
    var a = $(this).find('div');
    var txtValue = a.text();
    $(this).css('display', function() {
      return txtValue.toUpperCase().indexOf(filter) > -1 ? '' : 'none';
    });
  });
}