mongodb - Trouble updating last document from a query -

hello i'm new mongodb, trying update last document in query result having trouble doing so.

i know how last document using

 db.collection.find().sort({$natural:-1}).limit(1)

but how update this? tried doing:

 db.collection.update(db.collection.find().sort({$natural:-1}).limit(1))

but didn't work. , don't think:

 db.collection.update(query,update,option).sort({$natural:-1}).limit(1))

would want. checked official documentation couldn't find on querying last document.

you can use findandmodify perform update requires sorting identify document update:

db.test.findandmodify({     query: {},     sort: {$natural: -1},     update: {$set: {foo: 'bar'}} })

UV code