Type alias IsUnion<T, Then, Else>

🎭 predicate

Validate the type T is a union.

Author

Nurbol Alpysbayev

See

https://stackoverflow.com/questions/53953814/typescript-check-if-a-type-is-a-union

Example

type R = IsUnion<'a' | 'b'> // true
type R = IsUnion<boolean> // true
type R = IsUnion<number> // false
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