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

Question

这是我在配置文件中导入的 firebase 等，为什么会无法识别 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 }

Answer 1

如果您安装了 9.0.0 版本，那么您必须使用兼容库才能使用命名空间版本：

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 tree-shaking（删除未使用的代码）以使您的网络应用程序尽可能小和快。

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 documentation

中找到详细信息

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

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

javascript

typeerror

firebase

vue.js