Contains()

bool System.Collections.Generic.IReadOnlySet< T >.Contains

(

T

item

)

Implemented in System.Collections.Immutable.ImmutableHashSet< T >, System.Collections.Generic.SortedSet< T >.TreeSubSet, System.Collections.Generic.SortedSet< T >, System.Collections.Generic.HashSet< T >, and System.Collections.Immutable.ImmutableSortedSet< T >.