fixed optional utils: undifined to ?

Author: Sanshain

CHANGELOG.md

@@ -1,5 +1,10 @@
 # changelog
 
+## 2.2.6 
+
+ - utils: fixed `-?` for Optional types (as bad idea)
+ - utils fixed: OptionalExcept fixed for older ts versions
+
 ## 2.2.3 
 
  - utils added: OptionalExcept

package.json

@@ -1,6 +1,6 @@
 {
   "name": "types-spring",
-  "version": "2.2.5",
+  "version": "2.2.6",
   "description": "a package that provides more accurate and powerful typescript capabilities",
   "types": "./sources/utils/index.ts",
   "exports": {

sources/utils/index.ts

@@ -486,9 +486,10 @@ export type ReduceBy<T extends object[] | ReadonlyArray<object>, Key extends key
 * @returns {object} conditionally partial object
 * @example Optional<'a'|'b', {a: 1, b:1, c: 1}> => {a: 1 | undefined, b:1 | undefined, c: 1}
 */
-export type Optional<Keys extends PropertyKey, O extends object> = {
-    [K in keyof O]: K extends Keys ? O[K] | undefined : O[K]
-}
+export type Optional<Keys extends PropertyKey, O extends object> = _Simplify_<{
+    [K in keyof O as K extends Keys ? K : never]?: O[K] } & {
+        [K in keyof O as K extends Keys ? never : K]: O[K]
+    }>
 
 
 /**
@@ -500,8 +501,9 @@ export type Optional<Keys extends PropertyKey, O extends 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> = _Simplify_<{
-    [K in keyof O]: K extends Keys ? O[K] : O[K] | undefined
-}>
+    [K in keyof O as K extends Keys ? K : never]: O[K] } & {
+        [K in keyof O as K extends Keys ? never : K]?: O[K]
+    }>