method Set
Documentation for method Set
assembled from the following types:
role Baggy
From Baggy
(Baggy) method Set
Defined as:
method Set(--> Set)
Returns a Set whose elements are the keys of the invocant.
my = (eggs => 2, bacon => 3).BagHash;say .Set; # OUTPUT: «set(bacon, eggs)»
class Any
From Any
(Any) method Set
Defined as:
method Set(--> Set) is nodal
Coerces the invocant to Set, whereby Positionals are treated as lists of values.
class List
From List
(List) method Set
In general, creates a set which has as members elements of the list.
say <æ ß þ €>.Set; # OUTPUT: «set(ß æ þ €)»
However, there might be some unexpected changes in case the list includes non-scalar data structures. For instance, with Pairs:
my = (:42a, :33b);say ; # OUTPUT: «[a => 42 b => 33]»say .Set; # OUTPUT: «set(a b)»
The set will be composed of the key
s of the Pair whose corresponding value is not 0, eliminating all the values. Please check the Set
documentation for more examples and a more thorough explanation.