utils fixed: OptionalExcept fixed for older ts versions

Author: Sanshain

CHANGELOG.md

@@ -1,5 +1,9 @@
 # changelog
 
+## 2.2.3 
+
+ - utils added: OptionalExcept
+
 ## 2.2.2 
 
  - utils added: Optional

package.json

@@ -1,6 +1,6 @@
 {
   "name": "types-spring",
-  "version": "2.2.3",
+  "version": "2.2.4",
   "description": "a package that provides more accurate and powerful typescript capabilities",
   "types": "./sources/utils/index.ts",
   "exports": {

sources/utils/index.ts

@@ -499,9 +499,9 @@ export type Optional<Keys extends PropertyKey, O extends object> = {
 * @returns {object} conditionally partial object
 * @example Optional<'a'|'b', {a: 1, b:1, c: 1}> => {a: 1, b:1, c: 1  | undefined}
 */
-export type OptionalExcept<Keys extends PropertyKey, O extends object> = {
-    [K in keyof O & {}]: K extends Keys ? O[K] : O[K] | undefined
-}
+export type OptionalExcept<Keys extends PropertyKey, O extends object> = _Simplify_<{
+    [K in keyof O]-?: K extends Keys ? O[K] : O[K] | undefined
+}>