union

Returns the union of two sequences, a sequence containing every element of sequence1 and sequence2.

If the same element appears in both argument sequences, this will not cause it to appear twice in the result sequence. However, if the same element appears more than once in a single argument sequence, it may appear more than once in the result sequence.

test is used for all comparisons. It is always called with an element from sequence1 as its first argument and an element from sequence2 as its second argument. The order of elements in the new-sequence is not specified.

new-sequence may or may not share structure with sequence1 or sequence2.

union (#("butter", "flour", "sugar", "salt", "eggs"),
       #("eggs", "butter", "mushrooms", "onions", "salt"),
       test: \=)
 ⇒  #("salt", "butter", "flour", "sugar", "eggs",
       "mushrooms", "onions")

Exported from

Modifiers

open

Arguments

sequence1	An instance of <sequence>.
sequence2	An instance of <sequence>.
test:	An instance of <function>. The default is ==.

Values

new-sequence

An instance of <sequence>.