Deferred Rendering
Ext tried to optimize page rendering by waiting to render components whenver possible.
- All components render only when needed
- Rendering is managed for you by the component model - simply show the main container and let Ext do the rest
- Saves resources and provides better performance
- Easily turned off by the configuration option deferredRender
- Tip: Use object literals with the xtype config instead of creating new object instances whenever possible