type: narrow onChange argument to React.Key[] (#352)

Co-authored-by: liuyuan <[email protected]>

Author: yuanliu147

src/Collapse.tsx

@@ -38,7 +38,7 @@ const Collapse = React.forwardRef<HTMLDivElement, CollapseProps>((props, ref) =>
 
   const [activeKey, setActiveKey] = useMergedState<React.Key | React.Key[], React.Key[]>([], {
     value: rawActiveKey,
-    onChange: (v) => onChange?.(v),
+    onChange: (v) => onChange?.(v as React.Key[]),
     defaultValue: defaultActiveKey,
     postState: getActiveKeysArray,
   });

src/interface.ts

@@ -24,7 +24,7 @@ export interface CollapseProps {
   activeKey?: React.Key | React.Key[];
   defaultActiveKey?: React.Key | React.Key[];
   openMotion?: CSSMotionProps;
-  onChange?: (key: React.Key | React.Key[]) => void;
+  onChange?: (key: React.Key[]) => void;
   accordion?: boolean;
   className?: string;
   style?: object;