From e80bd95451c86b81a07fe136b0b822c85bdffcfd Mon Sep 17 00:00:00 2001
From: liwenzhen <liwenzhen3@huawei.com>
Date: Thu, 19 Jan 2023 14:41:02 +0800
Subject: [PATCH] fixed 2933a9e from
 https://gitee.com/liwenzhen3/third_party_jsframework/pulls/785 add check
 setTimeout is function or not before invoking it to

Signed-off-by: liwenzhen <liwenzhen3@huawei.com>
Change-Id: Ia019597939e41a23fe1914cfbb7758fbe6f684f8
---
 runtime/main/page/api/Differ.ts | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/runtime/main/page/api/Differ.ts b/runtime/main/page/api/Differ.ts
index 1726b613..c40314ab 100644
--- a/runtime/main/page/api/Differ.ts
+++ b/runtime/main/page/api/Differ.ts
@@ -63,10 +63,13 @@ export default class Differ {
       this._hasTimer = true;
 
       // Use setTimeout instead of setTimeoutDiffer
-      setTimeout(() => {
-        this._hasTimer = false;
-        this.flush();
-      }, 0);
+      // avoid invoking setTimeout after appDestroy
+      if (typeof setTimeout === "function") {
+        setTimeout(() => {
+          this._hasTimer = false;
+          this.flush();
+        }, 0);
+      }
     }
     const map: object[] = this._map;
     if (!map[defaultDepth]) {