Levi Morrison wrote on 07/09/2015 17:56:
function reduce ($initial) ~> $fn ~> $input ~> {
$accumulator = $initial;
foreach ($input as $value) {
$accumulator = $fn($accumulator, $value);
}
return $accumulator;
}
Hm, this is an interesting idea. I actually think the case for it is
*stronger* if ~> was considered special syntax for trivial functions,
because if not, there's this odd hybrid, which we probably wouldn't want
to allow:
function weird_declaration($bar) ~> {
any();
code();
here();
}
Whereas this declaration might be quite useful:
function double($x) ~> $x * 2;
I realise the syntax was only an example, but this way there'd be a nice
consistency between named and anonymous functions.
I think that would leave your example as:
function reduce ($initial) ~> $fn ~> function($input) use ( $initial, $fn) {
$accumulator = $initial;
foreach ($input as $value) {
$accumulator = $fn($accumulator, $value);
}
return $accumulator;
}
Regards,
--
Rowan Collins
[IMSoP]
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