IsNever
Implement a type IsNever, which takes input type T
.
If the type of resolves to never
, return true
, otherwise false
.
For example:
type A = IsNever<never> // expected to be true type B = IsNever<undefined> // expected to be false type C = IsNever<null> // expected to be false type D = IsNever<[]> // expected to be false type E = IsNever<number> // expected to be false