core/dev.fritz2.core/WithEvents/errorsIf

errorsIf

open fun errorsIf(selector: Event.() -> Boolean): Listener<Event, T>

occurs when there is an error while loading an external file (e.g. a document or an image).

Return

a Listener that emits Events on its Flow

Parameters

selector

expression to evaluate, which specific event should be emitted to the Flow. It is also possible and encouraged to manipulate the event dispatching by calling stopPropagation or similar DOM-API.