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在 Firebase 中,我收到 Uncaught TypeError: Cannot read property 'initializeApp' of undefined,但不确定为什么未定义“firebase”?

[英]In Firebase I am getting an Uncaught TypeError: Cannot read property 'initializeApp' of undefined, but not sure why 'firebase' is not defined?

这是配置文件中的我的 firebase 导入等,为什么这无法识别 firebase?

import firebase from 'firebase/app'
import 'firebase/firestore'
import 'firebase/auth'

const firebaseConfig = {
  apiKey: "XXX",
  authDomain: "XXX",
  projectId: "XXX",
  storageBucket: "XXX",
  messagingSenderId: "XXX",
  appId: "XXX",
  measurementId: "XXX"
}

//init firebase
firebase.initializeApp(firebaseConfig)

const projectAuth = firebase.auth()
const projectFirestore = firebase.firestore()
const timestamp = firebase.firestore.FieldValue.serverTimestamp

export { projectAuth, projectFirestore, timestamp }

如果您安装了9.0.0版,则必须使用 compat 库来使用命名空间版本:

import firebase from 'firebase/compat/app'
import 'firebase/compat/firestore'
import 'firebase/compat/auth'

尽管我建议使用新的模块化语法,该语法旨在促进摇树(删除未使用的代码)以使您的 Web 应用程序尽可能小和快速。

import { initializeApp } from "firebase/app"
import { getAuth } from "firebase/auth";
import { getFirestore } from "firebase/firestore"

const app = initializeApp(firebaseConfig)

const projectAuth = getAuth(app)
const projectFirestore = getFirestore(app)

export { projectAuth, projectFirestore }

您可以在文档中找到详细信息

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