fix: useMap uses prevMap state which is safer

streamich · Jun 26, 2019 · 3554f79 · 3554f79
1 parent ba6d375
commit 3554f79
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/src/useMap.ts b/src/useMap.ts
@@ -15,10 +15,10 @@ const useMap = <T extends object = any>(initialMap: T = {} as T): [T, Actions<T>
     {
       get: (key: keyof T) => map[key as string],
       set: <K extends keyof T>(key: K, entry: T[K]) => {
-        set({
-          ...map,
+        set((prevMap)=>({
+          ...prevMap,
           [key]: entry,
-        });
+        }));
       },
       remove: (key: keyof T) => {
         const { [key]: omit, ...rest } = map;