Property 'toDate' does not exist on type 'Date' Angular firestore

Question

I am trying to convert timestamp object from Firestore to Date object in TypeScript using toDate().

import { AngularFirestore } from '@angular/fire/firestore';
...
constructor(private database?: AngularFirestore) {...}
...
const someVariable = a.date.toDate();

Although the functionality is working fine in development mode but I am getting TypeScript compile check error. Also I am not able to build prod version (using ng prod) because of this error.

a.date.toDate() ~~~~ src/app/project/some.service.ts:74:36 -
error TS2339: Property 'toDate' does not exist on type 'Date'.

Any suggestions how do I resolve this?

Answer 1

toDate() does not work on Date, String, Number etc. Change type of your date to any for Timestamp.

date: any;

Btw, i would use toDate() usually in html files. It would show error but could compile. Type any also will clear html errors.

Answer 2

The error is telling you that as far as TypeScript knows, a.date is already a Date, not a Timestamp. So you need to look at the type information for whatever a is. If it's saying its date property is a Date when in fact it's a Timestamp, that's what you need to fix. (Or of course, if a.date is already a Date, you don't need that toDate call on it. But you said this code was "working in development mode" which suggests it's really a Timestamp.)