# Programming in Kotlin: Fundamentals, Episode 9: Challenge: Nullables | Kodeco

**URL:** <https://forums.kodeco.com/t/programming-in-kotlin-fundamentals-episode-9-challenge-nullables-kodeco/198177>\
**Category:** 🎓 Courses & Articles\
**Created:** [October 19, 2023, 2:31am UTC](https://forums.kodeco.com/t/programming-in-kotlin-fundamentals-episode-9-challenge-nullables-kodeco/198177 "2023-10-19T02:31:36Z")\
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**Author:** ![filbabic](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/filbabic/32/108144_2.png) [@filbabic](https://forums.kodeco.com/u/filbabic)\
**Post date:** [October 19, 2023, 2:31am UTC](https://forums.kodeco.com/t/programming-in-kotlin-fundamentals-episode-9-challenge-nullables-kodeco/198177/1 "2023-10-19T02:31:36Z")

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> This content was released on Apr 14 2020. The official support period is 6-months from this date.

Practice dealing with Nullable Types and null, using the safe call operator, the Elvis operator, and null-checks.

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This is a companion discussion topic for the original entry at [https://www.kodeco.com/7910496-programming-in-kotlin-fundamentals/lessons/9](https://www.kodeco.com/7910496-programming-in-kotlin-fundamentals/lessons/9)