I have a collection with numbers as field names.
    {
      "_id" : ObjectId("5d8bae78577c111a86605d39"),
      "subject" : "ABAD001",
      "10" : 1556.9,
      "30" : 1325.94
    }
I can't print the "numeric" field
 db.collection.findOne().10
This is the error:
[js] SyntaxError: missing ; before statement
How I could access the "numeric" fields?
I tried
db.collection.findOne().['10']
But it does not work
