Need a simple example of inverting @a to a Hash by reversing its keys and values

[tbrowder]

No description provided.

[raiph]

I suggest breaking this existing doc verbiage (from https://docs.raku.org/type/List#routine_invert) where I've inserted a ▲:

Assumes every element of the List is a L<C|/type/Pair>. Returns all elements as a
L<C|/type/Seq> of L<C|/type/Pair>s where the keys and values have been exchanged. ▲ If the value of a L<C|/type/Pair> is an L<C|/type/Iterable>, then it will expand the values
of that L<C|/type/Iterable> into separate pairs.

by inserting this code:

my @a = <list of four strings>;
say @a.pairs.invert.hash; # {list => 0, four => 2, of => 1, strings => 3}

---

Or perhaps instead add:

my @a = <list of four strings>;
say @a.antipairs.hash; # {list => 0, four => 2, of => 1, strings => 3}

to the antipairs doc?

[tbrowder]

On Sat, Mar 1, 2025 at 18:10 raiph ***@***.***> wrote: I suggest breaking this existing doc verbiage (from https://docs.raku.org/type/List#routine_invert) where I've inserted a ▲: Assumes every element of the List is a L<C|/type/Pair>. Returns all elements as a L<C|/type/Seq> of L<C|/type/Pair>s where the keys and values have been exchanged. ▲ If the value of a L<C|/type/Pair> is an L<C|/type/Iterable>, then it will expand the values of that L<C|/type/Iterable> into separate pairs. by inserting this code: my @A = <array of four strings>; say @a.pairs.invert.hash; # {array => 0, four => 2, of => 1, strings => 3} If you're OK with that I'll do a doc PR/commit for it. — Reply to this email directly, view it on GitHub <#4561 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAH5VVGHSAAXYYKV2I7DIGD2SJD63AVCNFSM6AAAAABYEL6PCGVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDMOJSGQ4DANJWGY> . You are receiving this because you authored the thread.Message ID: ***@***.***> [image: raiph]*raiph* left a comment (Raku/doc#4561) <#4561 (comment)> I suggest breaking this existing doc verbiage (from https://docs.raku.org/type/List#routine_invert) where I've inserted a ▲:

That would be very useful, thank you!

[tbrowder]

I think the .antipairs method alone is the best way to show the way. Maybe just improve its indexing in the docs.