CommutativeMonoid<T> mixin

CommutativeMonoid represents a commutative monoid.

A monoid is commutative if for all x and y, combine(x, y) == combine(y, x).

Superclass Constraints

Properties

empty → T
Return the identity element for this monoid.
read-onlyinherited
hashCode → int
The hash code for this object.
read-onlyinherited
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited

Methods

combine(T x, T y) → T
Associative operation which combines two values.
inherited
combineN(T a, int n) → T
Return a appended to itself n times.
inherited
intercalate(T middle) → Semigroup<T>
Return a Semigroup which inserts middle between each pair of elements.
inherited
isEmpty(T a, Eq<T> eq) → bool
Tests if a is the identity (empty).
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
reverse() → CommutativeMonoid<T>
Return a CommutativeMonoid that reverses the order.
override
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

instance<A>(A emptyValue, A f(A a1, A a2)) → CommutativeMonoid<A>
Create a CommutativeMonoid instance from the given function and empty value.
override