break and continue (scala.util.control.Breaks)
Scala has no simple break or continue commands, so it borrows a special helper to leave a loop early. It is like needing a special pass to leave class before the bell.
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Syntax
import scala.util.control.Breaks._
breakable {
for (item <- collection) {
if (condition) break
// body
}
}break and continue (scala.util.control.Breaks)
Scala has no built-in break or continue keywords, since early loop exits go against its functional style, but scala.util.control.Breaks provides a break() function usable inside a breakable { ... } block for early exit.
There is no direct equivalent of continue in Scala at all -- idiomatic code restructures the loop body with an if guard instead of trying to skip an iteration. Breaks is considered an escape hatch, not idiomatic day-to-day Scala.
Warning:
Scala has no continue equivalent -- use an if-guard inside the loop body to skip processing for specific values instead.
Example: break and continue (scala.util.control.Breaks)
import scala.util.control.Breaks._
object Main extends App {
breakable {
for (i <- 1 to 10) {
if (i > 5) break()
println(s"Value: $i")
}
}
// No continue keyword -- use an if-guard to skip instead
for (i <- 1 to 6) {
if (i % 2 != 0) {
println(s"Odd: $i")
}
}
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Related Topics
{# common_mistakes/chapter_summary/browser_support: on Hindi pages the
view already swaps in the hi_ translation fields (or blanks these
out if untranslated), so this renders correctly for both languages
without a lang_code check here. #}
Common Mistakes
- Using
breakwithout wrapping the loop inbreakable { ... }, which throws an exception instead of exiting. - Looking for a
continuekeyword, which does not exist; thebreakableblock goes inside the loop body to skip an iteration. - Forgetting
import scala.util.control.Breaks._, sobreak()andbreakableare not found.
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