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Mastering Angular Components by Gion Kunz

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Filtering tasks

In this section, we're going to implement some filter functionality for our task list. In order to control the active filter criteria, we are first building a toggle button list component. Let's go ahead and create a new component using the Angular CLI: 

ng generate component --spec false -ve none ui/toggle

After running the Angular CLI generator command on your console, let's edit the HTML template of the newly created component in src/app/ui/toggle/toggle.component.html:

<button class="toggle-button" 
        *ngFor="let button of buttonList" 
        [class.active]="button === activeButton" 
        (click)="activate(button)">{{button}}</button> 

Nothing special here, really! We repeat a button by iterating over an instance field called buttonList ...

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