Category "input-mask"

Microsoft Access 2013 Input Mask

How do I place on a input mask on an entity on my table? I want the entity LibraryID's mask to consist of 2 uppercase letters followed by 4 numbers.

Why can't I dynamically update the mask of an input using ng-neat input-mask?

I'm currently playing around with a stackblitz here: https://stackblitz.com/edit/angular-ivy-qr7yav?file=src%2Fapp%2Fanother.component.html With both ng-neat's