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

var $obj = {
  0: {
    'id': 3,
    'label': 'Item One'
  },
  1: {
    'id': 7,
    'label': 'Item Two'
  }
}

function findBy(obj, id){
		var result = null;
    var field;
    
		Object.keys($obj).forEach(function(key){
    	if(field.id === id){
	      result = field;
        return false;
      }
    });
}