Observable Array are arrays which have change notifications and are useful in scenarios with two-way data binding. Updating a Grid cell, updates the value in the observable array and updating a value in the observable array, updates a cell in the Grid. This demo page shows how to use our Observable Array implementation with the Data Grid for Angular bound to such observable array. Observable arrays also raise notifications when item is added, updated or removed in that array i.e they are useful in CRUD Grid applications.