fix: Fixing initializer type for useState

preactjs · Jun 10, 2021 · d7cab1b · d7cab1b
1 parent 014750e
commit d7cab1b
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/hooks/src/index.d.ts b/hooks/src/index.d.ts
@@ -9,6 +9,11 @@ export type StateUpdater<S> = (value: S | ((prevState: S) => S)) => void;
  */
 export function useState<S>(initialState: S | (() => S)): [S, StateUpdater<S>];
 
+export function useState<S = undefined>(): [
+	S | undefined,
+	StateUpdater<S | undefined>
+];
+
 export type Reducer<S, A> = (prevState: S, action: A) => S;
 /**
  * An alternative to `useState`.