Cloud Firestore: How to set a field in document to null

Question

I use a collection of documents that I use to identify user groups. My intention is to only fill in the document id field with the user id without having other useless fields in

Answer 1

The following will work for the web:

        firebase.firestore().collection('abcd').doc("efgh").set({
            name: "...",
            nullField: null
        })