Re: Re: [RFC][Discuss] Arrow Functions

On Fri, Feb 3, 2017 at 1:37 PM, Niklas Keller <me@kelunik.com> wrote: > 2017-02-03 21:23 GMT+01:00 Levi Morrison <levim@php.net>: >> >> On Fri, Feb 3, 2017 at 12:18 PM, Andrea Faulds <ajf@ajf.me> wrote: >> > Hi David, >> > >> > David Rodrigues wrote: >> >> >> >> Hello folks! >> >> I just not understand why "function" should be abbreviated. It's >> >> about >> >> "how >> >> less character better"? I don't see it too much on PHP. I guess that is >> >> more simple keep what exists current "function", that all knows about >> >> (that >> >> should be better than the next example): >> >> >> >> $mapped = array_map(function($x) => $x + $y); // vs current: >> >> $mapped = array_map(function($x) use($y) { return $x + $y }); >> > >> > >> > I feel the same way. It would be nice to have shorter syntax, but it >> > sacrifices readability and familiarity here, and adds yet another new >> > keyword. >> > >> > It also feels inconsistent… isn't "fn" just short for >> > "function"? Why is >> > it >> > exclusive to the => syntax? >> >> This is not exactly on topic... unless you are implying you'd prefer >> the |$x| => $x + $y? Maybe you missed [this][1] message? > > > Why is using "function" instead of "fn" not on topic? I did not ask for general syntax suggestions. What I am asking about is specifically what the preference people might have between these two options: fn(params) => expr |params| => expr As well as potential issues (thanks, Ilija, for pointing out a theoretical issue with union types). ---- As a disclaimer I'm trying to guide the discussion to these two options, not suppress suggestions I don't like.