Question

Which of the following performs case-insensitive string comparison?

(a) $strcasecmpequals

(b) $strcasecmp

(c) $strcmp

(d) None of the mentioned

I have been asked this question in an internship interview.

My query is from Pipeline and Sharded Collections in section Aggregation Concepts and Aggregation Mechanics of MongoDB

Answer 1

The correct answer is (a) $strcasecmpequals

To explain I would say: $strcasecmp returns 0 if two strings are equivalent.