element.fadeIn() is not available

[liuxing_sc]

element.fadeIn() is not available in 4.1

[evant]

Do you have a test case?

Ext.require('Ext.fx.*');
Ext.onReady(function() {
    
    var el = Ext.getBody().createChild({
        tag: 'div',
        style: {
            width: '100px',
            height: '100px',
            backgroundColor: 'red'
        }
    });
    
    el.setOpacity(0);
    el.fadeIn({
        duration: 3000
    });
    
});