NVM I found elixir can do this straightforwardly with a sequence of
pattern:
```
a = {c, _} = {1, 2}
```
在2023年6月8日星期四 UTC+8 11:54:19<Andrey Yugai> 写道：
>
> Could you provide an elixir example with proposed new syntax, for those
> who is not familiar with haskell?
>
>
>
>
> -------- Original Message --------
> On 8 Jun 2023, 11:36, Corvo Liu < lyh...@gmail.com> wrote:
>
>
> In haskell there's a syntax sugar called as pattern. For example:
>
> ```
> f (x:xs) = x:x:xs
> ```
>
> maybe rewrite as:
>
> ```
> f s@(x:xs) = x:s
> ```
>
> This feature is useful, and I constantly find there's places in my code
> that I can use it to make my code more concise.
>
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