firebase 객체의 배열 저장 방법(nested Array save) How to store an array of objects in Firestore

const player =[{playerName: "김개똥",playerAge: "4"},{playerName:"김철똥", playerAge:"5"},{playerName:"오개똥" ,playerAge:"8"}]



firebase.firestore().collection('nesd').add({

player:

firebase.firestore.FieldValue

.arrayUnion(...player)//개행문자 넣지 않으면 오류다

});