(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
// when T is any|unknown, Y is returned, otherwise N | |
type IsAnyUnknown<T, Y, N> = unknown extends T ? Y : N; | |
// when T is never, Y is returned, otherwise N | |
type IsNever<T, Y = true, N = false> = [T] extends [never] ? Y : N; | |
// when T is a tuple, Y is returned, otherwise N | |
// valid tuples = [string], [string, boolean], | |
// invalid tuples = [], string[], (string | number)[] |
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.