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A comment on Parsing R code: Freedom of expression is not always a good idea (2012).

Re:Parsing R code: Freedom of expression is not always a goo... by abirch on Tuesday June 14, 2022 @07:08AM (#31737253)
I'm sad that R didn't go closer to JavaScript style for Lambda instead of going toward Haskell, e.g., ‘\(x) x + 1’ vs x=> x+1
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Re:Parsing R code: Freedom of expression is not always a goo... by wodenokoto on Tuesday June 14, 2022 @08:32AM (#31738309)
I've always liked that lambda and functions are the same thing in R and write `function(x){x + 1}`

I dislike both of your examples and am glad to have never seen that in any R code I've met.

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Re:Parsing R code: Freedom of expression is not always a goo... by abirch on Tuesday June 14, 2022 @10:59AM (#31740478)
it's new as of R 4.1 along with the new pipe operator

https://www.r-bloggers.com/2021/05/the-new-r-pipe/

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Re:Parsing R code: Freedom of expression is not always a goo... by tomlue on Tuesday June 14, 2022 @08:09AM (#31737963)
I prefer the R formula syntax. i.e

~ . + 1 ~ .x + .y

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Re:Parsing R code: Freedom of expression is not always a goo... by tfehring on Tuesday June 14, 2022 @11:58AM (#31741313)
I like this syntax better than the new lambda syntax, but I think it's good that a proper lambda syntax exists now. Not all higher-order functions accept formulas (they have to wrap their function arguments with rlang::as_function or equivalent), and there are probably some obscure cases where the distinction between a formula and a function matters.
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Re:Parsing R code: Freedom of expression is not always a goo... by bruce343434 on Tuesday June 14, 2022 @07:50AM (#31737740)
What's sad about it?
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Re:Parsing R code: Freedom of expression is not always a goo... by reitanqild on Tuesday June 14, 2022 @08:00AM (#31737846)
JS version is more readable for most people.

(I'm no big fan of JS in general, unless it is TS but I consider that a different language.)

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Re:Parsing R code: Freedom of expression is not always a goo... by abirch on Tuesday June 14, 2022 @09:41AM (#31739329)
Exactly and it could bring R to a larger audience.
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