fix: emit allows optional data parameter for 'end' event

jacobbubu · Apr 25, 2020 · 3661c9e · 3661c9e
1 parent 3632a04
commit 3661c9e
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/index.ts b/src/index.ts
@@ -4,7 +4,7 @@ import looper from './looper'
 export type Event = 'data' | 'end' | 'error'
 export type QueueElem<Out> = Out | null
 export interface Emitter<In, Out> {
-  emit: (event: Event, data: In | pull.EndOrError) => void
+  emit: (event: Event, data?: In | pull.EndOrError) => void
   queue: (data: QueueElem<Out>) => void
 }
 export type Writer<In, Out> = (this: Emitter<In, Out>, data: In) => void