Raku Documentation
infix (&), infix ∩
Documentation for infix (&), infix ∩ assembled from the following types:
language documentation Operators
From Operators
(Operators) infix (&), infix ∩
multi sub infix:<(&)>(**@p) multi sub infix:<∩>(**@p)
Returns the intersection of all of its arguments. This creates a new Set that contains only the elements common to all of the arguments if none of the arguments are a Bag, BagHash, Mix or MixHash.
say <a b c> (&) <b c d>; # OUTPUT: «set(b c)» <a b c d> ∩ <b c d e> ∩ <c d e f>; # OUTPUT: «set(c d)»
If any of the arguments are Baggy or Mixy, the result is a new Bag (or Mix) containing the common elements, each weighted by the largest common weight (which is the minimum of the weights of that element over all arguments).
say <a a b c a> (&) bag(<a a b c c>); # OUTPUT: «Bag(a(2), b, c)»
∩ is equivalent to (&), at codepoint U+2229 (INTERSECTION).
language documentation Sets, bags, and mixes
(Sets, bags, and mixes) infix (&), infix ∩
Returns the intersection of all of its arguments. More information, Wikipedia definition.