Problem Statement/Rationale

I noticed that strings are inconsistently quoted in shell output. Double quotes are used for arguments to BSON classes (e.g. ObjectId, ISODate), while single quotes are used elsewhere.

For example:

test> db.foo.find()
[
  {
    _id: '6462e1acce3d12b9e229d5fd',
    title: 'Agent Zero',
    releaseDate: ISODate("1995-11-16T00:00:00.000Z"),
    tags: [ 'action', 'thriller' ]
  },
  {
    _id: ObjectId("6462e1acce3d12b9e229d5fd"),
    title: 'Agent Zero',
    year: 1995
  }
]

I noticed the above in mongosh-1.8.0, but it probably exists in earlier versions. This may also be a relic of the original mongo shell.