Control flow
Scala uses if expressions, match and for-comprehensions rather than statements.
What you will be able to do
- if returns a value.
- match is exhaustive for sealed types.
- for can map and filter.
In plain English
Scala uses if expressions, match and for-comprehensions rather than statements.
- if returns a value.
- match is exhaustive for sealed types.
- for can map and filter.
val score = 84
val label = if (score >= 80) "pass" else "retry"
val items = for (n <- 1 to 3) yield n * 2
println(label, items)Your turn
EasyExplain it back
Answer from memory: What does a for-comprehension with yield produce?
TEXT · starter
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Knowledge checkQuestion 1
What does a for-comprehension with yield produce?
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