Fields: - [x] $currentDate - [x] $inc - [x] $min - [x] $max - [x] $mul - [x] $rename - [x] $set - [x] $setOnInsert - [x] $unset Arrays: - [x] $ - [x] $[] - [x] $[identifier] - [x] $addToSet - [x] $pop - [x] $pull - [x] $push - [ ] $pullAll - [x] $each - [x] $position - [x] $slice - [x] $sort Bitwise: - [x] $bit