From 0334aab17b951d9346276963c13c8974f45e6950 Mon Sep 17 00:00:00 2001
From: Li Kui <90845831+likui628@users.noreply.github.com>
Date: Thu, 7 Oct 2021 08:53:24 +0800
Subject: [PATCH] docs: increment argument 'value' need default value (#995)

---
 docs/guide/advanced/vuex.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/guide/advanced/vuex.md b/docs/guide/advanced/vuex.md
index 83c7dca0e..531ca22a2 100644
--- a/docs/guide/advanced/vuex.md
+++ b/docs/guide/advanced/vuex.md
@@ -158,7 +158,7 @@ const createVuexStore = (initialState) =>
       ...initialState
     },
     mutations: {
-      increment(state, value) {
+      increment(state, value = 1) {
         state.count += value
       }
     }