Question

__________ returns the JavaScript representation in the form of a string literal.

(a) toStringJava()

(b) toString()

(c) String()

(d) none of the mentioned

I have been asked this question in an interview.

This intriguing question comes from ObjectId in section GridFS, BSON Datatype and Administration Concepts of MongoDB

Answer 1

Right option is (b) toString()

To explain I would say: In previous versions, toString() returns the hexadecimal string representation, which as of version 2.2 can be retrieved by the str property.