From 5f5376c64ebd318fffc76eec768ce047ddf9e300 Mon Sep 17 00:00:00 2001
From: Charles-Axel Dein <charlesaxel.dein@gmail.com>
Date: Thu, 4 Jul 2019 09:51:25 +0200
Subject: [PATCH] Fix useLocalStorage types for functional updates

Fixes #438
---
 src/useLocalStorage.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/useLocalStorage.ts b/src/useLocalStorage.ts
index 03ba9392..051685be 100644
--- a/src/useLocalStorage.ts
+++ b/src/useLocalStorage.ts
@@ -1,7 +1,10 @@
 import { useEffect, useState } from 'react';
 import { isClient } from './util';
 
-const useLocalStorage = <T>(key: string, initialValue?: T, raw?: boolean): [T, (value: T) => void] => {
+type Dispatch<A> = (value: A) => void;
+type SetStateAction<S> = S | ((prevState: S) => S);
+
+const useLocalStorage = <T>(key: string, initialValue?: T, raw?: boolean): [T, Dispatch<SetStateAction<T>>] => {
   if (!isClient) {
     return [initialValue as T, () => {}];
   }