The result of build has some nulls removed

[kenchan0130]

For example,

fireorm/src/BaseFirestoreRepository.ts

Lines 23 to 28 in 2a98b9a

	async findById(id: string) {
	return this.firestoreColRef
	.doc(id)
	.get()
	.then(d => (d.exists ? this.extractTFromDocSnap(d) : null));
	}

method is expected to return Promise<T | null>.
However, if you check the yarn build generated lib/src/BaseFirestoreRepository.d.ts, we will see Promise<T>.

This is very unfortunate because it is giving up the benefit of the type itself.

The likely cause is that strictNullChecks has been false.

I tried to build with strictNullChecks set to true, but I got 249 errors and found that I had to change a lot of this library.

Because of this situation, I think it is better to let the owner decide or fix the problem.