aboutsummaryrefslogtreecommitdiff
path: root/src/hooks/useLocalStorage.ts
diff options
context:
space:
mode:
Diffstat (limited to 'src/hooks/useLocalStorage.ts')
-rw-r--r--src/hooks/useLocalStorage.ts20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/hooks/useLocalStorage.ts b/src/hooks/useLocalStorage.ts
new file mode 100644
index 0000000..a604ebe
--- /dev/null
+++ b/src/hooks/useLocalStorage.ts
@@ -0,0 +1,20 @@
+import { useState, useCallback } from 'react';
+
+type Value = string | null;
+type Setter = (value: Value) => void;
+
+const useLocalStorage = (key: string): [Value, Setter] => {
+ const [state, setState] = useState<Value>(() => localStorage.getItem(key) || null);
+
+ const update: Setter = useCallback(value => {
+ if (value) localStorage.setItem(key, value);
+ else localStorage.removeItem(key);
+ setState(value);
+ }, [key]);
+
+ return [state, update];
+};
+
+
+export default useLocalStorage;
+