When it comes to the official documentation regarding how to update elements in an array in Firestore, it says that: 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.
Read moreHow do I update my firestore value?
Update and Delete in Firestore
Read moreHow do I add a field to an existing document in firestore?
Build a DocumentReference to the document you want to update, then use the update() method on the DocumentReference to indicate only the fields to be added or changed . Pass it an object with only properties that match the fields to add or change.
Read moreHow do I add a field to an existing document in firestore?
Build a DocumentReference to the document you want to update, then use the update() method on the DocumentReference to indicate only the fields to be added or changed . Pass it an object with only properties that match the fields to add or change.
Read moreHow do I add data to firestore?
There are several ways to write data to Firestore:
Read moreHow do I add data to firestore?
There are several ways to write data to Firestore:
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