Loops/With multiple ranges: Difference between revisions
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=={{header|Perl 6}}==
This task is really conflating things, (at least in Perl 6). Sequences and loops are two different concepts and may be considered / implemented separately from each other.
Also displaying the j sequence since it isn't very large.▼
Yes, you can generate a sequence with a loop, and a loop can use a sequence for an iteration value, but the two are somewhat orthogonal and don't necessarily overlap.
Sequences are first class objects in Perl 6. You can (and typically do) generate a sequence using the (appropriately enough) sequence operator and can assign it to a variable and/or pass it as a parameter; the entire sequence, not just it's individual values. It ''may'' be used in a looping construct, but it is not necessary to do so.
Various looping constructs often do use sequences as their iterator but not exclusively, possibly not even in the majority.
<lang perl6>sub comma { ($^i < 0 ?? '-' !! '') ~ $i.abs.flip.comb(3).join(',').flip }
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