Decode html-entities using jQuery

HTML

<div id="container"></div>

JavaScript

var str = "<p>fddfg dfgdfgdfg dfgdfgdfgd  <em>asdasd</em> <strong>cvbncvbn</strong> <code>&amp;lt;div id='asd'&amp;gt;asd&amp;lt;/div&amp;gt;</code></p>";

var rega = new RegExp('&amp;lt;','g');
var regb = new RegExp('&amp;gt;','g');

str = str.replace(rega, '<').replace(regb, '>');

console.log(str);

$('#container').html(str);

console.log($('#container').html());