在 nodejs 中检索最后一个 mongodb 条目

Question

I Need help to retrieve last record from my collection. I have this code:

    db.collection('bbb1collection', function(err, collection) {
    collection.find({}).sort({_id:-1}).limit(1).toArray(function(err, results) {
        path = results;
    console.log(results);
}

Answer 1

使用此查询：

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

Answer 2

Check out this:

db.collection('bbb1collection', function(err, collection) {
  collection
    .find()
    .sort({$natural: -1})
    .limit(1)
    .next()
    .then(
      function(doc) {
        console.log(doc);
      },
      function(err) {
        console.log('Error:', err);
      }
    );
});

read about $natural here

Answer 3

 return new Promise(async (resolve, reject) => { db.get().collection('bbb1collection').find().sort({$natural:-1}).limit(1).next().then((res) => { console.log(res) resolve(res) }); });