jQuery addClass example

Change class name on click in jQuery

by Kunal Virk

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui-touch-punch/0.2.2/jquery.ui.touch-punch.min.js"></script>
<div id="banner-message">
  <p>Hello World</p>
</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

// find elements
var banner = $("#banner-message")
var button = $("button")

// handle click and add class
button.on("click", function(){
  banner.addClass("alt")
})

var dragging = false;

window.dragging = dragging;

banner.draggable({
    drag : function() {
    	banner.find('p').text("dragging");
      dragging = true;
    },
    stop : function() {
    	banner.find('p').text("dragstop");
      dragging = false;
    }
})

banner.on("click", function(e) {
  if (!dragging) {
    banner.find('p').text("Click kr diya");
  }
})