Extending objects in Ext JS

extending-objects-in-ext-js-1.js

var start = {
    id: 123,
    count: 41,
    desc: 'this is information',
    title: 'Base Object',
    tag: 'uncategorized',
    values: [1,1,2,3,5,8,13]
};
var more = {
    name: 'Los Techies',
    tag: 'javascript'
};
var extra = {
    count: 42,
    title: null,
    desc: undefined,
    values: [1,3,6,10]
};

var extended = Ext.apply(start, more, extra);
console.log(JSON.stringify(extended));

extending-objects-in-ext-js-2.js

{
    "id": 123,
    "count": 42,
    "title": null,
    "tag": "javascript",
    "values": [1,3,6,10],
    "name": "Los Techies"
}