firebase.database.ref is not a function error

Question

I am trying to read/write data from my database, but I always get this error:

firebase.database.ref is not a function error

Here

Answer 1

I also get a database function not found issue with latest firebase library. After researching what I found is, It is due to Javascript I am importing for the database:

Previously I was using below script, Which was not working:

After removing -app from the script URL, it start working:

Hope this will be helpful for others.