where문을 썼는데 Uncaught TypeError: db.collection(...).where(...).get(...).then(...) is not a function 라는 오류가 생기네요
아래는 해당 부분의 코드입니다
const db = firebase.firestore();
db.collection('item').where("time","==","true").get().then()((결과)=>{
결과.forEach((doc)=>{
console.log(doc.data());
var 템플릿 = `<div class="product">
<div class="thumbnail" style="background-image: url(${doc.data().이미지})"></div>
<div class="flex-grow-1 p-4">
<h5 class="title"><a href='/detail.html?id=${doc.data().이름}'>${doc.data().이름}</a></h5>
<p class="date">${doc.data().개수}개</p>
<div id="d_div">
<button type="button" class="plus" id=${doc.data().이름} onclick="Plus(this.id)">+</button>
<button type="button" class="minus" id=${doc.data().이름} onclick="Minus(this.id)">-</button>
</div>
<p class="price">${doc.data().가격}원</p>
</div>
</div>`;
$('.container').append(템플릿)
})
})