Cell should not allow user to type more than 3 decimal values

Yeah sure, and even had updated an example to check the precession control, even that’s not working, please check and let me know where I had made mistake here is the link for that https://stackblitz.com/edit/angular-5ykm8c-ale11n?file=src%2Fapp%2Fheroes%2Fheroes.component.ts