How to add a parameter to a number with User.updateOne?

Question

MongoDB

When you need to add 200 User.updateOneto the fieldbalance

User.updateOne({ username: "test" }, { balance:  /* ? */}, (err) => { if(err) console.log(err) })

Answer 1

https://docs.mongodb.com/manual/reference/operator...

User.updateOne({username: "test"}, { $inc: { balance: 200 }})