Drill 24: Trade-off — Functions and collections
Explain the trade-off in this example.
What you will be able to do
- Explain the trade-off in this example.
Practice task
Explain the trade-off in this example.
val lessons = List(("HTML", 12), ("CSS", 18))
val titles = lessons.filter(_._2 >= 15).map(_._1)
val total = lessons.map(_._2).sum
println(titles, total)Your turn
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Explain the trade-off in this example.
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