What is the best way to toggle a card within a collection of cards using Angular?

Wishing you a wonderful day! I simply desire that when I click on a card, only that specific card flips over. But unfortunately, all the cards flip when I click on just one.

HTML

TypeScript

Answer №1

Placing the .state property on the data array directly means that the state is shared among all cards, instead of being specific to each individual card.

Here are some suggested modifications to your code:

  • You can include the index in your cardClicked handler:
<div class="card" *ngFor="let d of data; let idx=index" (click)="cardClicked(idx)" [@cardFlip]="d.state">
  <!-- add remaining code here -->
</div>

Make sure to check the updated template where I have changed the binding for [@cardFlip] to be linked with d.state instead of data.state. Additionally, I am passing the idx value as an argument to the cardClicked function.

  • Your updated handler should now look like this:
cardClicked(index: number): void {
  const result = [...this.data];
  const { state } = result[index];
  result[index] = { ...result[index], state: state == 'default' ? 'flipped' : 'default' };
  this.data = result;
}

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