jQuery addClass example

Change class name on click in jQuery

by kneidels

HTML

<button id="but">Change</button>

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

$("#but").click(function(e){
	e.preventDefault();
  
  $("#but").html('sss');
  
  $.ajax({ 
			
			type: "POST", 
			url: "/echo/html", 
			enctype: 'multipart/form-data',
			contentType: false,
			processData: false,  // Important!	
			data: {
       go: 'aaa'
       } , 
			success: function(msg) { 
				if (msg=='good'){
        		alert('yup');
        }
      }

  });
  
   $("#but").html('Change 2');
  
  

})