firebase_training.html

<!DOCTYPE html>
<html>
    <head>
        <script>
            //firebaseの初期化
            const firebaseConfig = {
            apiKey: "AIzaSyB3VsN2RAvd8tE21y49nvpSulcnK0Mmphw",
            authDomain: "creativemonozukuri.firebaseapp.com",
            projectId: "creativemonozukuri",
            storageBucket: "creativemonozukuri.appspot.com",
            messagingSenderId: "290080836882",
            databaseURL: "https://creativemonozukuri-default-rtdb.asia-southeast1.firebasedatabase.app/",
            appId: "1:290080836882:web:6728d403300e3e22d837cb"
            };
            firebase.initializeApp(firebaseConfig);

            //データベースへの参照の取得
            database = firebase.database();

            //データを追加する
            dbDataRef = database.ref("test");
            // dbDataRef.set({
            //     name: "Yoshida",
            //     city: "Tokyo"
            // })

        </script>
    </head>
    <body>
        <div id="content">
        </div>
        <script
            dbTopicsRef = database.ref("topics");
            dbTopicsRef.on("value", (snapshot) =>{
                data = snapshot.val();
                console.log(data);
            }
        </script>
    </body>
</html>