No Typescript definitions

[dcollien]

Can I suggest also:
type oddNumber = twoMilOdd | fourMilOdd | ... etc.
Where:
type twoMilOdd = 1 | 3 | 5 | ... etc.
So isOdd can be a type guard:

function isOdd(value: number): value is oddNumber { ... }

[i-am-gizm0]

This is what this project has needed all along!

[dogweather]

Also no factories or adapters.

[Rudxain]

Nice! we can get compile-time checks!