Extjs merge objects

Question

I have a super class in my application, that defines an object like this:

Ext.define(\'superclass\', {
    myObject: {
        prop1: true,
        prop2: 200,
          


        

Answer 1

Extend the object in the constructor (or in initComponent if you extend Ext.Component):

Ext.define('childclass', {
    extend: 'superclass',

    constructor: function() {
        this.myObject = Ext.apply({}, this.myObject, {
            prop3: false,
            prop4: false
        });
        this.callParent(arguments);
    }
});

Demo.