From 5b36b9c43e0e1464752fcbb93b1396c48b930491 Mon Sep 17 00:00:00 2001
From: Carter Li <CarterLi@users.noreply.github.com>
Date: Sun, 23 May 2021 20:21:17 +0800
Subject: [PATCH] fix(input-number): don't use `this.inputRef` when the
 component is already unmounted (#4103)

---
 components/vc-input-number/src/index.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/vc-input-number/src/index.js b/components/vc-input-number/src/index.js
index 409c241b9..d449f54a3 100755
--- a/components/vc-input-number/src/index.js
+++ b/components/vc-input-number/src/index.js
@@ -292,7 +292,7 @@ export default defineComponent({
       });
       const value = this.getCurrentValidValue(this.$data.inputValue);
       const newValue = this.setValue(value);
-      if (this.$attrs.onBlur) {
+      if (this.$attrs.onBlur && this.inputRef) {
         const originValue = this.inputRef.value;
         const inputValue = this.getInputDisplayValue({ focused: false, sValue: newValue });
         this.inputRef.value = inputValue;