Edit data
Read moreHow long does it take for firestore to update?
The Cloud Firestore metrics are sampled every minute, but updates may take up to 4 minutes to show up in your dashboards.
Read moreHow do I add an object to firestore?
How to add data to a nested object in Firestore
Read moreHow do I update firestore fields?
Update a document
Read moreHow do I append on firestore?
3 Answers. If your document contains an array field, you can use arrayUnion() and arrayRemove() to add and remove elements. arrayUnion() adds elements to an array but only elements not already present. arrayRemove() removes all instances of each given element.
Read more