chore: fix ts (#231)

Author: zombieJ

src/List.tsx

@@ -134,7 +134,7 @@ export function RawList<T>(props: ListProps<T>, ref: React.Ref<ListRef>) {
       if (typeof itemKey === 'function') {
         return itemKey(item);
       }
-      return item?.[itemKey];
+      return item?.[itemKey as string];
     },
     [itemKey],
   );

src/utils/CacheMap.ts

@@ -13,12 +13,12 @@ class CacheMap {
   }
 
   set(key: React.Key, value: number) {
-    this.maps[key] = value;
+    this.maps[key as string] = value;
     this.id += 1;
   }
 
   get(key: React.Key) {
-    return this.maps[key];
+    return this.maps[key as string];
   }
 }