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meander
2023-04-19T12:45:16.801589Z
I am trying to get back to meander after almost two and I do not understand my own code 🙃
2023-04-19T12:46:03.585289Z
Can someone remind me if values can be skipped?
2023-04-19T12:47:08.831329Z
simplest example, let's say, I wouldn't want that nil
(me/rewrite [{:a 1} {:b 2}]
{:b ?v} ?v
[?x & ?more] [(me/cata ?x) & (me/cata ?more)]
?x ?x)
;; => [nil 2] 2023-04-19T12:48:52.055679Z
I know I can filter it with one more cata, but I'm trying to recall if there is an easier way
Ben Sless 2023-04-19T15:08:59.834569Z
Wrap the v in a some?
2023-04-19T20:23:12.292009Z
Of course, it doesn't work because the pattern needs something to match
2023-04-19T20:23:31.562419Z
(me/rewrite [{:a 1} {:b 2}]
{:b (me/some ?v)} ?v
[?x & ?more] [(me/cata ?x) & (me/cata ?more)]
)
;; => nil 2023-04-19T20:24:02.277969Z
(me/rewrite [{:a 1} {:b 2}]
{:b (me/some ?v)} ?v
[?x & ?more] [(me/cata ?x) & (me/cata ?more)]
?x ?x)
;; => [{:a 1} 2] 2023-04-19T20:25:08.052209Z
I am where I was before, but instead of nil I have the entire map 🙂
😂 1
noprompt 2023-04-19T23:16:28.002049Z
@huxley What were you after in this case?
2023-04-19T23:17:46.596659Z
nice to see you again @noprompt
2023-04-19T23:17:48.828069Z
🙂
noprompt 2023-04-19T23:24:10.596459Z
🙂
2023-04-19T23:33:05.876429Z
i already managed this, I rediscovered m/$