JSFiddle - React, Tailwind, and code Playground

by bogdan_vq

HTML

<script src="https://www.gstatic.com/firebasejs/4.7.0/firebase.js"></script>
<script src="https://www.gstatic.com/firebasejs/4.6.2/firebase-app.js"></script>
<script src="https://www.gstatic.com/firebasejs/4.6.2/firebase-database.js"></script>
<script src="https://www.gstatic.com/firebasejs/4.6.2/firebase-firestore.js"></script>
<script src="https://www.gstatic.com/firebasejs/4.6.2/firebase-messaging.js"></script>
<script>
  // Initialize Firebase
  var config = {
    apiKey: "AIzaSyD_RYmKh9S8VtLtpwVCctjxl4LcI17re2o",
    authDomain: "mesterultau-19d8c.firebaseapp.com",
    databaseURL: "https://mesterultau-19d8c.firebaseio.com",
    projectId: "mesterultau-19d8c",
    storageBucket: "",
    messagingSenderId: "820284245228"
  };
  firebase.initializeApp(config);
</script>

JavaScript

console.log(firebase.app().name);  // "[DEFAULT]"

//var defaultStorage = firebase.storage();
var defaultDatabase = firebase.database();

var rootRef = firebase.database().ref();



// The key of a root reference is null
var rootRef = firebase.database().ref();
var key = rootRef.key;  // key === null
// The key of any non-root reference is the last token in the path
var adaRef = firebase.database().ref("users/ada");
var key = adaRef.key;  // key === "ada"
key = adaRef.child("name/last").key;  // key === "last"