Type Alias: GanttEventHandler<K>

GanttEventHandler<K> = (payload) => void | false | K extends AsyncCancelableEvent ? Promise<void | false> : never

Defined in: view/event-bus.ts:244

The one handler shape Gantt.on/Gantt.off and GanttShell.on/GanttShell.off all share — declared once here rather than repeating the same conditional at each of those four call sites. K extends AsyncCancelableEvent is the only two names a handler may resolve async.

Type Parameters

K

K extends keyof GanttEventMap

Parameters

payload

GanttEventMap[K]

Returns

void | false | K extends AsyncCancelableEvent ? Promise<void | false> : never