Bitovi

union

`algebra.union(a, b)`

Returns a set that represents the union of A and B (A ∪ B).

algebra.union(
  {start: 0, end: 99},
  {start: 100, end: 199},
) //-> {start: 0, end: 199}

Parameters

a {Set}:
A set.
b {Set}:
A set.

Returns

{Set|Boolean}:

If an object is returned, it is the union of A and B (A ∪ B).

If EMPTY is returned, that means there is no difference or the sets are not comparable.
If UNDEFINABLE is returned, that means that B is a subset of A, but no set object can be returned that represents that set.
If UNKNOWABLE is returned, that means a result is unable to be determined.