IsNull.md

typelab / assertions / IsNull

type IsNull<T> = _IsTrue<IfNull<T, true, false>>;

Checks if a given type T is a null type.

Type Parameters

Type Parameter	Description
T	The type to be checked.

Returns

true if T is a null type, false otherwise.

Example

type Valid = IsNull<{}>; // true
type Invalid = IsNull<string>; // false