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> Julia's threading macro is surprisingly brittle, only letting you chain single-argument functions
This combined with the link could make things confusing to a Julia beginner, so to make things clear:
* The linked page is talking about an external Julia package which provides a macro. And that macro lets you use the `_` syntax similar to what you describe Racket as having.
* Julia's default inbuilt threading/piping syntax is the one with the single-argument limitation, and that's an operator, not a macro.
There's been a lot of discussion about bringing the `_` syntax or something like it to the base language, but there seem to be implementation difficulties. [1]
> +R :: https://r4ds.had.co.nz/pipes.html
This page is talking about magrittr piping (which is probably still the most popular), but base R also got inbuilt piping syntax with version 4.1. IIRC, it automatically passes the piped-in value as the first argument to the subsequent function.
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