ery good open-source and commercial support in many languages. JSON is especially convenient in web applications, since it is a subset of the literal object notation of <a href="http://www.json.org/js.html">ECMAScript</a>. A technique called <a href="#JSONP">JSONP</a> can be used to do cross-domain Ajax.</p>

<h3>Why not use XML instead?</h3>
<p>Some find JSON lighter and more simple, see this <a href="http://www.json.org/xml.html">comparison</a>.</p>

<h3>Why not use s-expressions instead?</h3>
<ul>
  <li>