Defines the logical operator to check that the given parameter extends TExtendee. Defines true if the given TUnion includes TValue. This type is opposite to UnionExcludes<>.
TExtendee
true
TUnion
TValue
UnionExcludes<>
Union type to search for TValue in.
Type to match with TUnion members.
Defines the logical operator to check that the given parameter extends
TExtendee. Definestrueif the givenTUnionincludesTValue. This type is opposite toUnionExcludes<>.