why would you

[EnetoJara]

I do not want to disrespect, but honestly. maybe I am to dumb to see the magnificent idea

[trasherdk]

Convenience.

Don't want to run a Redis, MySQL or other DB server, for a key/value storage.

Testing browser javascript in Node (Mocha/Jest/Whatever).

Probably other use cases too 😃

[lmaccherone]

Those are the two primary use cases but the first one has two sub-motivations: 1) lightweight, and 2) write code that will run on both the browser and the server.

That said, I think the majority of uses are for testing

[lmaccherone]

Note, it's also synchronous which simplifies coding