Kotlin Wrappers API Reference
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Kotlin Wrappers API Reference
kotlin-browser
/
web.window
/
WindowEventHandlers
/
onbeforeunload
onbeforeunload
web
open
var
onbeforeunload
:
EventHandler
<
BeforeUnloadEvent
,
WindowEventHandlers
,
WindowEventHandlers
>
?
(
source
)
MDN Reference