https://github.com/mongodb/node-mongodb-native
Save The save method is a shorthand for upsert if the document contains an
_id, or an insert if there is no_id.
As it says on that page the save method is a shorthand. But there's no example, how do you use the save method.
I'm looking for an example to learn how to use the save method.
You use the save method exactly the same way that you use the insert method.
The only difference is what its result will be if the document already exists.