Firebase Realtime Get

<input id="input" /><br /> <input id='output'> <script src="https://www.gstatic.com/firebasejs/8.2.1/firebase-app.js"></script> <script src="https://www.gstatic.com/firebasejs/8.2.1/firebase-database.js"></script> <script> var firebaseConfig = { apiKey: "AIzaSyDEhgVwwkCTst0V1DOZUKvtjaXBppuMI3M", authDomain: "onerealtimeserver.firebaseapp.com", databaseURL: "https://onerealtimeserver-default-rtdb.firebaseio.com", projectId: "onerealtimeserver", storageBucket: "onerealtimeserver.appspot.com", messagingSenderId: "263064716551", appId: "1:263064716551:web:b5154b93c62545dfaa71a2", measurementId: "G-90P78SK0Q0" }; firebase.initializeApp(firebaseConfig); </script> <script> setInterval(get,100) function get(){ firebase.database().ref('new').on("value", function (snapshot) { document.getElementById('output').value=snapshot.val().input; }); } </script>