From 6cce232ba0dc5d89f6a53c1af674a8e0c6eb8790 Mon Sep 17 00:00:00 2001
From: Tomas Kudlac <41956970+Thomasan1999@users.noreply.github.com>
Date: Tue, 3 Aug 2021 10:37:01 +0200
Subject: [PATCH] fix(types): Support `undefined` in NavigationGuardNext
 (#1059)

---
 src/types/index.ts                  | 2 +-
 test-dts/navigationGuards.test-d.ts | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/types/index.ts b/src/types/index.ts
index 0ddd8866b..9bfad6bc1 100644
--- a/src/types/index.ts
+++ b/src/types/index.ts
@@ -370,7 +370,7 @@ export interface NavigationGuardNext {
   (): void
   (error: Error): void
   (location: RouteLocationRaw): void
-  (valid: boolean): void
+  (valid: boolean | undefined): void
   (cb: NavigationGuardNextCallback): void
   /**
    * Allows to detect if `next` isn't called in a resolved guard. Used
diff --git a/test-dts/navigationGuards.test-d.ts b/test-dts/navigationGuards.test-d.ts
index b2057fe82..71a244eb8 100644
--- a/test-dts/navigationGuards.test-d.ts
+++ b/test-dts/navigationGuards.test-d.ts
@@ -26,6 +26,10 @@ router.beforeEach((to, from) => {
   return false
 })
 
+router.beforeEach((to, from, next) => {
+  next(undefined)
+})
+
 // @ts-expect-error
 router.beforeEach((to, from, next) => {
   return Symbol('not supported')