How to see the structure of a mongodb collection?

Question

MongoDB

Hello.
There is a collection in mongodb. How to view its "fields", that is, the columns of this "table"?

Answer 1

This is done using
db.collectionName.findOne()

Answer 2

If your project uses mogoose, you can look for a file with mongoose schema. You can use the robomongo
interface for even more clarity, for example , or simply print the entire collection to the console.

Answer 3

No way. There is no data scheme, in each document anything can be stuffed up.