MakePartial Generic - Transform some keys from a Type into Optional Keys because built-in "Partial" Generic apply optional into all keys, but this only into few keys.

MakePartial.ts

export type MakePartial<
  OriginalType,
  KeyFromOriginalType extends keyof OriginalType,
> = Omit<OriginalType, KeyFromOriginalType> &
  Partial<Pick<OriginalType, KeyFromOriginalType>>;

/* Here is how to use: */
// type User = {
//   name: string;
//   age: number;
//   createdAt: Date;
// };

// type PartialUser = MakePartial<User, 'age' | 'createdAt'>;

// const user: PartialUser = {
//   name: 'John Doe',
// };