How do I conditionally add mat-raised-button?

Question

I have a button on my screen where if the user has already added clicked on it, it is a mat-filled-button but if I haven't clicked on it, it is a mat-button

My code looks like this

 <button
          *ngIf="myVote !== 'UPVOTE'"
          mat-button
          color="primary"
          (click)="onVote('UPVOTE')"
        >
          UPVOTE
        </button>
        <button
          *ngIf="myVote === 'UPVOTE'"
          mat-flat-button
          color="primary"
          (click)="onVote('NONE')"
        >
          UPVOTE
        </button>

Basically I have two buttons and only one shows. Obviously, this is very ugly.

Is there a way where I can achieve the same outcome with only one button and it conditionally is a mat-flat-button or a mat-button based on a set of logic?

Answer 1

Try like this:

<button
  mat-button 
  [class.mat-flat-button]="myVote === 'UPVOTE'"
  color="primary"
  (click)="onVote(myVote === 'UPVOTE'? 'NONE' :'UPVOTE')"
>
  UPVOTE
</button>

See Working Demo

_ I have used raised button the demo for better visibility.