title: Which is better - Ext.get() or document.getElementById()
body: <p>What is the difference between <code>Ext.get()</code> and <code>document.getElementById()</code> in terms of performance? Will <code>Ext.get()</code> be slower as it may internally call <code>document.getElementById()</code> ? Or is there any specific advantage of using <code>Ext.get()</code> ?</p>