Mark StoreCreator's preloadedState argument as optional (#3080)

reduxjs · Jul 31, 2018 · 3cb7b8d · 3cb7b8d
1 parent d380986
commit 3cb7b8d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/index.d.ts b/index.d.ts
@@ -220,7 +220,7 @@ export type DeepPartial<T> = { [K in keyof T]?: DeepPartial<T[K]> };
  */
 export interface StoreCreator {
   <S, A extends Action, Ext, StateExt>(reducer: Reducer<S, A>, enhancer?: StoreEnhancer<Ext, StateExt>): Store<S & StateExt, A> & Ext;
-  <S, A extends Action, Ext, StateExt>(reducer: Reducer<S, A>, preloadedState: DeepPartial<S>, enhancer?: StoreEnhancer<Ext>): Store<S & StateExt, A> & Ext;
+  <S, A extends Action, Ext, StateExt>(reducer: Reducer<S, A>, preloadedState?: DeepPartial<S>, enhancer?: StoreEnhancer<Ext>): Store<S & StateExt, A> & Ext;
 }
 
 /**