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update docs/firestore/documents.md#2843

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jamesdaniels merged 1 commit intoangular:masterfrom
obumnwabude:patch-1
Aug 19, 2021
Merged

update docs/firestore/documents.md#2843
jamesdaniels merged 1 commit intoangular:masterfrom
obumnwabude:patch-1

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I had this error that doc does not exist on payload anytime I access DocumentData from snapshotChanges().
However, treating payload as DocumentSnapshot (using the data() method on it directly),
rather than treating it as DocumentChange, solved the problem.

So that's why I feel that the type of payload is DocumentSnapshot and not DocumentChange

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I had this error that doc does not exist on payload anytime I access DocumentData from snapshotChanges().
However, treating payload as  DocumentSnapshot (using the data() method on it directly),
rather than treating it as DocumentChange, solved the problem.

So that's why I feel that the type of payload is DocumentSnapshot and not DocumentChange
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Thanks for the fix!

@jamesdaniels jamesdaniels merged commit 05d6014 into angular:master Aug 19, 2021
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