✨ throw an error when React 17 is used with the React 18 version

astoilkov · Aug 9, 2022 · e6cf1ad · e6cf1ad
1 parent 9b791e4
commit e6cf1ad
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/useLocalStorageState.ts b/src/useLocalStorageState.ts
@@ -40,6 +40,12 @@ export default function useLocalStorageState<T = undefined>(
     key: string,
     options?: LocalStorageOptions<T | undefined>,
 ): LocalStorageState<T | undefined> {
+    if (typeof useSyncExternalStore === 'undefined') {
+        throw new TypeError(
+            `You are using React 17 or below. Install use-local-storage-state with "npm install use-local-storage-state@17".`,
+        )
+    }
+
     const defaultValue = options?.defaultValue
 
     // SSR support