That was quick! Since you already had the filter code in app.component.ts, all you had to do was edit the template in order to provide controls for filtering the items. Our next — and last — article looks at how to build your Angular app ready for production, and provides further resources to carry on your learning journey....'done' = 'all'; The default value for filter is all , but it can...class="btn-primary" (click)="addItem(newItem.value)">Add</button> --> <!-- Buttons...