Component html this property can not execute the script

[sailei1]

Ext.define("Sencha.view.Main", {
extend: 'Ext.Panel',
config : {
html:"dsfds<script>console.log('loglgo');</script>"
}
});

Ext.Viewport.add(Ext.create('Sencha.view.Main'));

[AndreaCammarata]

Please provide us more info on what you are trying to accomplish so we can help you.
Putting the "script" tag into a component "html" property is not a good example of best uses.