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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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15
src/util/zip.scad
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@@ -8,9 +8,14 @@
* *
**/ **/
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]) [
combine([for(j = [0:end_lts]) lts[j][i]]) for(i = [0:len(lts[0]) - 1])
]; [for(j = [0:end_lts]) lts[j][i]]
] :
[
for(i = [0:len(lts[0]) - 1])
combine([for(j = [0:end_lts]) lts[j][i]])
];