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meander 2023-04-19
I am trying to get back to meander after almost two and I do not understand my own code 🙃
Can someone remind me if values can be skipped?
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]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?
Of course, it doesn't work because the pattern needs something to match
(me/rewrite [{:a 1} {:b 2}]
{:b (me/some ?v)} ?v
[?x & ?more] [(me/cata ?x) & (me/cata ?more)]
)
;; => nil(me/rewrite [{:a 1} {:b 2}]
{:b (me/some ?v)} ?v
[?x & ?more] [(me/cata ?x) & (me/cata ?more)]
?x ?x)
;; => [{:a 1} 2]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?
nice to see you again @noprompt
noprompt 2023-04-19T23:24:10.596459Z
🙂
i already managed this, I rediscovered m/$