00043-easy-exclude

问题

Implement the built-in Exclude<T, U>

Exclude from T those types that are assignable to U

For example:

type Result = MyExclude<'a' | 'b' | 'c', 'a'> // 'b' | 'c'

解答

type MyExclude<T, U> = T extends U ? never : T