replace undefined with null

sveltejs · Feb 5, 2022 · 5491871 · 5491871
1 parent 22aa51d
commit 5491871
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/runtime/internal/lifecycle.ts b/src/runtime/internal/lifecycle.ts
@@ -34,9 +34,9 @@ type UnionToIntersection<U> = (U extends any ? (k: U) => void : never) extends (
 type ExtractObjectValues<Object extends Record<any, any>> = Object[keyof Object]
 
 type ConstructDispatchFunction<EventMap extends Record<string, any>, EventKey extends keyof EventMap> =
-	EventMap[EventKey] extends never
+	EventMap[EventKey] extends never | null
 	? (type: EventKey) => void
-	: undefined extends EventMap[EventKey]
+	: null extends EventMap[EventKey]
 	? (type: EventKey, detail?: EventMap[EventKey]) => void
 	: (type: EventKey, detail: EventMap[EventKey]) => void