From 5966ad18f64cc8a7a6c0f6da058cad6ee04ed9ca Mon Sep 17 00:00:00 2001
From: Ovilia <zwl.sjtu@gmail.com>
Date: Thu, 7 Aug 2025 14:21:29 +0800
Subject: [PATCH] fix(dataZoom): handleLabel should be an optional type #21161

---
 src/component/dataZoom/SliderZoomModel.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/component/dataZoom/SliderZoomModel.ts b/src/component/dataZoom/SliderZoomModel.ts
index 75c9d51ea6..19f6fefa42 100644
--- a/src/component/dataZoom/SliderZoomModel.ts
+++ b/src/component/dataZoom/SliderZoomModel.ts
@@ -124,7 +124,7 @@ export interface SliderDataZoomOption extends DataZoomOption, BoxLayoutOptionMix
     brushStyle?: ItemStyleOption
 
     emphasis?: {
-        handleLabel: SliderHandleLabelOption
+        handleLabel?: SliderHandleLabelOption
         handleStyle?: ItemStyleOption
         moveHandleStyle?: ItemStyleOption
     },