jQuery addClass example

Change class name on click in jQuery

by br00k

HTML

<script src="https://cdn.rawgit.com/ricmoo/aes-js/e27b99df/index.js"></script>
<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

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

// handle click and add class
button.on("click", function(){
// An example 128-bit key (16 bytes * 8 bits/byte = 128 bits)
var key = [119, 242, 211, 219, 137, 201, 138, 145, 65, 222, 145, 171, 213, 17, 129, 200];

function arrayBufferToBase64(buffer) {
    var binary = '';
    var bytes = new Uint8Array(buffer);
    var len = bytes.byteLength;
    for (var i = 0; i < len; i++) {
        binary += String.fromCharCode(bytes[i]);
    }
    return window.btoa(binary);
}

// Convert text to bytes
var text = '我是老唐';
var textBytes = aesjs.utils.utf8.toBytes(text);

var ecb = new aesjs.ModeOfOperation.ecb(key);
var encryptedBytes = ecb.encrypt(aesjs.padding.pkcs7.pad(textBytes));
console.log(encryptedBytes);
console.log(arrayBufferToBase64(encryptedBytes));
})