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Subject: Re: [RFC][Discuss] Arrow Functions
From: ajf@ajf.me (Andrea Faulds)

Hi Levi,

Levi Morrison wrote:
> Here is an example of an existing closure:
>
>     function ($x) use ($arr) {
>         return $arr[$x];
>     }
>
> This RFC proposes syntax and semantics to simplify this common usage to:
>
>     fn($x) => $arr[$x]
>

Is it necessary to introduce a new keyword, fn?

I think you'd get a similar benefit from:

     function($x) => $arr[$x]

Likewise, is it necessary to restrict auto-capture to the => syntax? 
Couldn't we allow the following?

     function ($x) {
         return $arr[$x];
     }

That being said, I broadly support your goals.

-- 
Andrea Faulds
https://ajf.me/