Generic type checking for typescript

// ts in   If the internal structures of the two types are identical   It can also be converted and received as the same type 

class Location {
     x: number; y: number }

class Point {
     x: number; y: number }

const local: Point = new Location

TS You can make types with the same structure have direct type equivalence In this way, it is convenient to remove the trouble of some types of forced rotation