Set operations topic

Logical operations on sets.

Functions

difference<T>(Iterable<T> iterable, Iterable<Iterable<Object?>> others) → Set<T>

Returns a new set containing every value in iterable that is not in any of the others iterables.

disjoint<T>(Iterable<Object?> a, Iterable<Object?> b) → bool

Returns true if a and b are disjoint: if a and b contain no shared value.

intersection<T>(Iterable<T> iterable, Iterable<Iterable<Object?>> others) → Set<T>

Returns a new set containing every (distinct) value that appears in all of the given iterables.

subset<T>(Iterable<Object?> a, Iterable<Object?> b) → bool

Returns true if a is a subset of b: if every value in the given iterable a is also in the given iterable b.

superset<T>(Iterable<Object?> a, Iterable<Object?> b) → bool

Returns true if a is a superset of b: if every value in the given iterable b is also in the given iterable a.

union<T>(Iterable<Iterable<T>> iterables) → Set<T>

Returns a new set containing every (distinct) value that appears in any of the given iterables.