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A comment on Writing HTML with Racket and X-Expressions (2019). Parent comment
https://pugjs.org/language/mixins.html
(I think there's a python port too, but I use the JS version both in Node and in the browser.)
HTML is one case where I think significant whitespace is a really obvious win.
https://pugjs.org/language/mixins.html
(I think there's a python port too, but I use the JS version both in Node and in the browser.)