我想将我的 firestore 值存储为数字，但它被存储为字符串

Question

当我尝试存储我的集合值时，我的所有值都存储为字符串我想将我的价格和份量值存储为 firestore 中的数字。

那么谁能告诉我要添加或更改什么以便将其存储为数字值。

代码：

import React from 'react';
import { db } from '../firebaseConfig'
import { useState } from 'react'
import { addDoc, collection } from 'firebase/firestore'
import './contact.css';

const Contact = () => {

const [servings, setServings] = useState("");
const [price, setPrice] = useState("");
"");

const userCollectionRef = collection(db, "mastermenu")

const handleSubmit = () => {
addDoc(userCollectionRef,{
   
    servings: servings,
    price: price,
   
}).then(() => {
  if(!alert("form Submitted Successfully!!!"));
})
}

<label>Servings</label>
  <select
    onChange={(e) => setServings(e.target.value)}>
    <option value="">Select Servings</option>
    <option value="0">0</option>
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
    </select>

   <label>Price</label>
    <input
    
    placeholder=" ₹ Enter Amount"
    onChange={(e) => setPrice(e.target.value)} />``

Answer 1

您的状态以字符串形式启动。您可以通过使用 Javascript 的 Number 方法将它们转换为数字：

const handleSubmit = () => {
addDoc(userCollectionRef,{
   
    servings: Number(servings),
    price: Number(price),
   
}).then(() => {
  if(!alert("form Submitted Successfully!!!"));
})
}

我想将我的 firestore 值存储为数字，但它被存储为字符串

I want to store my firestore value as number but it is being stored as string

firebase

reactjs

google-cloud-firestore