From 0017caf68b54284f449a08b321eb162090fce591 Mon Sep 17 00:00:00 2001
From: Jian Zhang <dsonet@msn.com>
Date: Tue, 30 Jun 2020 06:52:44 +0800
Subject: [PATCH] chore: avoid unnecessary function call (#1464)

---
 packages/runtime-core/src/components/BaseTransition.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/runtime-core/src/components/BaseTransition.ts b/packages/runtime-core/src/components/BaseTransition.ts
index b1ee5da6..104fe097 100644
--- a/packages/runtime-core/src/components/BaseTransition.ts
+++ b/packages/runtime-core/src/components/BaseTransition.ts
@@ -136,8 +136,8 @@ const BaseTransitionImpl = {
     const state = useTransitionState()
 
     return () => {
-      const children = getTransitionRawChildren(
-        slots.default ? slots.default() : [],
+      const children = slots.default && getTransitionRawChildren(
+        slots.default(),
         true
       )
       if (!children || !children.length) {