Session Ready
Exercise

Organizations and prizes over time

How many organizations won prizes before 1945 versus in or after 1945?

Instructions
100 XP
  • You won't need the $elemMatch operator at all for this exercise.
  • Save a filter before to count organization laureates with prizes won before 1945. Recall that organization status is encoded with the "gender" field, and that dot notation is needed to access a laureate's "year" field within its "prizes" array.
  • Save a filter in_or_after to count organization laureates with prizes won in or after 1945.