fix: ensure DeepKey type handle optional fields

arimariojesus · Oct 9, 2022 · f5aa11b · f5aa11b
1 parent 3a7b96e
commit f5aa11b
Showing 1 changed file with 2 additions and 8 deletions.
diff --git a/src/types.ts b/src/types.ts
@@ -1,10 +1,4 @@
-type ValidValues =
-  | string
-  | number
-  | Record<string, any>
-  | Array<any>
-  | undefined
-  | null;
+type ValidValues = string | number | object | Array<any> | undefined | null;
 
 export type DeepKey<
   T extends Record<string, any>,
@@ -15,7 +9,7 @@ export type DeepKey<
     : never
   : K extends `${infer TKey}.${infer Rest}`
   ? T[TKey] extends ValidValues
-    ? DeepKey<T[TKey], Rest> extends never
+    ? DeepKey<Exclude<T[TKey], undefined>, Rest> extends never
       ? never
       : K
     : never