DevExtreme Angular - ArrayStore

Extend a JavaScript array's functionality by placing it into an ArrayStore. It provides an interface for loading and editing data, and allows you to handle data-related events.

Data kept in the ArrayStore can be processed in a DataSource. For example, the DataSource can sort data.

NOTE
Even if you have passed a JavaScript array to the dataSource option, the SelectBox automatically places it into an ArrayStore wrapped into the DataSource you can get with the getDataSource() method.
See Also