jQuery addClass example

Change class name on click in jQuery

by Kolichikov

HTML

<div id="banner-message">
  <p id="debugInfo">
  
  </p>
  <select id="selectElement" multi>
    <option id="optionElement1" value="1">Option 1</option>
    <option id="optionElement2" value="2">Option 2</option>
    <option id="optionElement3" value="3">Option 3</option>
    <option id="optionElement4" value="4">Option 4</option>
    <option id="optionElement5" value="5">Option 5</option>
  </select>
</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 select = $("#selectElement");
var options = $("option");
var debug = $("#debugInfo");
// handle click and add class
select.on('click', function(){
	debug.text("clicked on select " + new Date())
})