typescript omit

1interface PageInfo {
2  title: string;
3}
4
5type Page = "home" | "about" | "contact";
6
7const nav: Record<Page, PageInfo> = {
8  about: { title: "about" },
9  contact: { title: "contact" },
10  home: { title: "home" },
11};
12
13nav.about;
14//   ^ = Could not get LSP result: v.a>bTry

1interface Todo {
2  title: string;
3  description: string;
4  completed: boolean;
5  createdAt: number;
6}
7
8type TodoPreview = Omit<Todo, "description">;

1type TodoPreview = Pick<Todo, "title" | "completed">;

1tstype Person = {  name: string;  age: number;  location: string;};type QuantumPerson = Omit<Person, "location">;// equivalent totype QuantumPerson = {  name: string;  age: number;};

1interface A {
2    x: string
3}
4
5interface B extends Omit<A, 'x'> {
6  x: number
7}