In Go I can do this:
type Country string
type City string
func findOnMap(country Country, city City) {
//...
}
This guarantees that a country string will never be misused as a city. I use this a lot in Go. It is particularly useful for IDs since they are all ints but should never be used interchangeably.
I can't find out how to do the same thing in TypeScript. I tried the following:
type Country = string;
But this is a type alias, meaning that the types "string" and "Country" can be used interchangeably. This is precisely what I don't want.
My search has returned nothing and perusing the TS docs indicated this is not part of TS at all.
Did I miss anything? Are there any plans on adding this?
