Omit

omit.ts

interface Book {
    id: number;
    title: string;
    subject?: 'crime' | 'comedy';
    body: string;
}
 
type BookPreview = Omit<Book, "id" | "body">;
 
const book: BookPreview = {
  title: "Arsène Lupin, Gentleman Burglar",
  subject: 'comedy',
};


console.log(book)

/**
 *  {
        "title": "Arsène Lupin, Gentleman Burglar",
        "subject": "comedy"
    } 
 */

const newBook: BookPreview = {
  title: "The Hobbit",
};


console.log(newBook)

/**
 *  {
        "title": "The Hobbit"
    } 
 */