"Firebase" and "firebase".
However, I would clone the exact same code out into another folder, and it would give me this error:
It turns out that in the 2.x library there is no little f "firebase". Doh! So let it be known that the 2.X library was all about the capital F "Firebase", and in order to use the little f one you need to have the 3.X library installed!
Initializing Firebase in 2.X
The Firebase Database
From the source code you can access any of these nodes as either an object or a list. Here's an example of how we might load a node as an object: