Question

How can I get JSON array from Ext.data.Store outside the function?
The code:

var store = new Ext.data.Store({
                model: 'nested' + type,
                proxy: {
                    type: 'ajax',
                    url: '/Grid/GetDetailed?InvoiceId=' + $(row).attr('id'),
                    reader: {
                        type: 'json',
                        root: 'items',
                        totalProperty: 'totalCount'
                    }
                }
            });
            store.load();

And I want to use something like this:

store.getAt(0);

but it’s undefined.
someone said it beacaouse of the ajax which is asynchronic.

Answer 1

If you use store.getAt(0) immediately after the store.load() is called then yes, the problem is that the load is asynchronic so you should use the callback method of the load to fix this.

store.load({
    scope   : this,
    callback: function(records, operation, success) {
        //here the store has been loaded so you can use what functions you like
        store.getAt(0);
    }
});