data.js

// Import the functions you need from the SDKs you need

import { initializeApp } from "https://www.gstatic.com/firebasejs/9.1.2/firebase-app.js";
import {getAuth, signInWithEmailAndPassword} from "https://www.gstatic.com/firebasejs/9.1.2/firebase-auth.js";

// import { getAnalytics } from "firebase/analytics";
// const firebaseapp = require("firebase/app")
// TODO: Add SDKs for Firebase products that you want to use
// https://firebase.google.com/docs/web/setup#available-libraries

// Your web app's Firebase configuration
// For Firebase JS SDK v7.20.0 and later, measurementId is optional
const firebaseConfig = {
  apiKey: "AIzaSyBV5xvjksjmDETv8VRvRacmNo8quNwQaKI",
  authDomain: "signuppage-9a393.firebaseapp.com",
  databaseURL: "https://signuppage-9a393-default-rtdb.firebaseio.com",
  projectId: "signuppage-9a393",
  storageBucket: "signuppage-9a393.appspot.com",
  messagingSenderId: "1047205739932",
  appId: "1:1047205739932:web:8bec4d698d657595725c59",
  measurementId: "G-K2P67M0VS4"
};

document.getElementById ("btn1").addEventListener ("click", signIn, false);

// Initialize Firebase
const app = initializeApp(firebaseConfig);
const auth = getAuth();

// const analytics = getAnalytics(app);
  // Initialize Firebase
// const app = initializeApp(firebaseConfig);
// const analytics = getAnalytics(app);

// var datab  = firebase.database().ref('data');
// function UserRegister(){
// var email = document.getElementById('eemail').value;
// var password = document.getElementById('lpassword').value;
// firebase.auth().createUserWithEmailAndPassword(email,password).then(function(){
    
// }).catch(function (error){
//     var errorcode = error.code;
//     var errormsg = error.message;
// });
// }
// const auth = firebase.auth();
function signIn(){
    var email = document.getElementById('eemail').value;
    var password = document.getElementById('lpassword').value;
    console.log(email,password)
    const promise =signInWithEmailAndPassword(auth,email,password);
    promise.catch(e => {alert(e)});
    promise.then( e => alert("login successfully"));
    // window.open("https://www.google.com","_self");
}
// document.getElementById('form').addEventListener('submit', (e) => {
//     e.preventDefault();
//     var userInfo = datab.push();
//     userInfo.set({
//         name: getId('fname'),
//         email : getId('eemail'),
//         password : getId('lpassword')
//     });
//     alert("Successfully Signed Up");
//     console.log("sent");
//     document.getElementById('form').reset();
// });
// function  getId(id){
//     return document.getElementById(id).value;
// }