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

From: Date: Sat, 04 Feb 2017 21:30:26 +0000
Subject: Re: Re: [RFC][Discuss] Arrow Functions
References: 1 2 3 4  Groups: php.internals 
Request: Send a blank email to internals+get-98201@lists.php.net to get a copy of this message
> And then there's the extra typing and visual space taken up, which is not > something to dismiss entirely. Also, as someone else mentioned this syntax > *seems* like it would support nesting. Compare the following: > > $x = function($a) => function($b) => function($c) => $a * $b * $c; > $y = fn($a) => fn($b) => fn($c) => $a * $b * $c; > $z = |$a| => |$b| => |$c| => $a * $b * $c; > > print $x(1)(2)(3); // prints 6 > > Which of these is more readable? Id' argue it's not $x. In a past version the RFC included an example of chaining. The current version doesn't show an example, but does say it is possible. To be clear: $x = fn($a) => fn($b) => fn($c) => $a * $b * $c; Is supported in the current implementation. It would similarly be supported in the |params| => expr notation.

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