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refactor: is_undef(combine)

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Justin Lin
2022-04-18 16:35:40 +08:00
parent 493645bc7e
commit ed1027f9de
1 changed files with 10 additions and 5 deletions
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7
src/util/zip.scad
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@@ -8,8 +8,13 @@
* *
**/ **/
function zip(lts, combine = function(elems) elems) = function zip(lts, combine) =
let(end_lts = len(lts) - 1) let(end_lts = len(lts) - 1)
is_undef(combine) ?
[
for(i = [0:len(lts[0]) - 1])
[for(j = [0:end_lts]) lts[j][i]]
] :
[ [
for(i = [0:len(lts[0]) - 1]) for(i = [0:len(lts[0]) - 1])
combine([for(j = [0:end_lts]) lts[j][i]]) combine([for(j = [0:end_lts]) lts[j][i]])