Extjs4 getting started (create, define, mixins, extend)

1. create window [html] ExtonReady (function () {varwinExtcreate (& amp; 39; ExtWindow & amp; 39;, {width: 800, height: 600, title: & amp; 39; first & amp; 39 ;}); winsh 1. create window [html] Ext. onReady (function () {var win = Ext. create ('ext. window ', {width: 800, height: 600, title: 'first'}); win. show () ;}); 2. use define to customize the class (where extend is inherited) [html] Ext. define ('mywin', {extend: 'ext. window '}); Ext. create ('mywin', {width: 600, height: 400 }). show (); 3. mixins: mixed class [html] Ext. define ('cansinging', {sing: function () {alert ("I'm on the highway to hell... ") ;}}); Ext. define ('musician ', {mixins: {canSing: 'canonicals'}); Ext. create ('musician ',{}). sing ();