[TypeScript] Find common props between two types, keyword Extract

interface UserBase {
  email: string
  image: string | null
  username: string
}

interface UserProfile {
  id: string
  email: string
  image: string | null
  isAdmin: boolean
  username: string
  reviews: string[]
}

type SharedUserKeys = Extract<keyof UserBase, keyof UserProfile>
// 'email' | 'image' | 'username'

type SharedUserData = {
  [K in SharedUserKeys]: UserProfile[K]
}

const user1: SharedUserData = {
  email: 'test@example.com',
  image: null,
  username: 'sampleuser',
}