How about adding Partial Example?

[gaki2]

Hey @mattpocock .
Thanks for your effort and time spent on this course.
I'd suggest adding Partial Example.
What do you think of that?

/**
 * How do we make _only_ the id property mandatory?
 */
interface User {
  id: string;
  firstName: string;
  lastName: string;
  address: string;
  age: number;
  sex: string;
}

/**
 * Answer1 - optional properties
 */
interface User {
  id: string;
  firstName?: string;
  lastName?: string;
  address?: string;
  age?: number;
  sex?: string;
};

/**
 * Answer2 - Partial properties
 */
interface User {
  id: string;
} & Partial<{
  firstName: string;
  lastName: string;
  address: string;
  age: number;
  sex: string;
}>

[mattpocock]

Thanks for the suggestion, but this will likely live in a separate module.