From faab7c03f0e9205349746c7ada5ab1cad3fae8db Mon Sep 17 00:00:00 2001
From: neverland <chenjiahan@youzan.com>
Date: Wed, 10 Feb 2021 10:44:46 +0800
Subject: [PATCH] chore(Collapse): improve warning (#8119)

---
 src/collapse/index.js | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/src/collapse/index.js b/src/collapse/index.js
index 35fff2527..00b23b879 100644
--- a/src/collapse/index.js
+++ b/src/collapse/index.js
@@ -41,15 +41,19 @@ export default createComponent({
     const isExpanded = (name) => {
       const { accordion, modelValue } = props;
 
-      if (
-        !accordion &&
-        !Array.isArray(modelValue) &&
-        process.env.NODE_ENV !== 'production'
-      ) {
-        console.error(
-          '[Vant] Collapse: type of prop "modelValue" should be Array'
-        );
-        return;
+      if (process.env.NODE_ENV !== 'production') {
+        if (accordion && Array.isArray(modelValue)) {
+          console.error(
+            '[Vant] Collapse: "v-model" should not be Array in accordion mode'
+          );
+          return false;
+        }
+        if (!accordion && !Array.isArray(modelValue)) {
+          console.error(
+            '[Vant] Collapse: "v-model" should be Array in non-accordion mode'
+          );
+          return false;
+        }
       }
 
       return accordion ? modelValue === name : modelValue.indexOf(name) !== -1;