Read, Write, Update, Delete | Firebase Realtime Database v10.3 | Javascript

Its not working for me at all

am soo glad you keep making new videos when firebase updates

where can we copy the code? it would take too much time to copy from the video. thanks a lot

sir kindly create the singup singin logout pages ...

can I have the files in this tutorial please?

Sir I have this error ""firebase fatal error: can't determine firebase database url. be sure to include databaseurl option when calling firebase.initializeapp()."" How to solve this ?