Map items of collection snapshot in Firebase Firestore

Question

Firebase Firestore Guides show how to iterate documents in a collection snapshot with forEach:

db.collection(\"cities\").get().then(function(que         


        

Answer 1

Got pretty sick and tired of Firestore returning stuff in their classes or whatever. Here's a helper that if you give it a db and collection it will return all the records in that collection as a promise that resolves an actual array.

const docsArr = (db, collection) => {
  return db
    .collection(collection)
    .get()
    .then(snapshot => snapshot.docs.map(x => x.data()))
}

;(async () => {
  const arr = await docsArr(myDb, myCollection)
  console.log(arr)
})()