Firestoreからまとめて削除
Chrome devtoolでやった
jslet querySnapshot;
db.collection("kakidashi").get().then((qs) => { querySnapshot = qs})
querySnapshot.docs[0].data().items
querySnapshot.forEach((x) => {
if(x.data().items.length == 0){
x.ref.delete()
}
})"Engineer's way of creating knowledge" the English version of my book is now available on [Engineer's way of creating knowledge]
(C)NISHIO Hirokazu / Converted from [Scrapbox] at [Edit]