Typescript overload arrow functions

Question

So we can do:

export function myMethod (param: number) :number
export function myMethod (param: string) :string

export function myMethod (param: string | nu         


        

Answer 1

This solution is based on @Sam96 but keeps the code of the arrow function fully typed.

type Create = {
  (): Vector<0>;
  (x: T): Vector;
  (x: T, y: T): Vector;
};

const create: Create = (
  x?: T,
  y?: T
) => ({
  x: x ?? 0,
  y: y ?? x ?? 0,
});