Assign method call to hash value?

[Yitzchak Scott-Thoennes]

On Mon, Jan 28, 2013 at 7:39 PM, Sam Kington <sam at illuminated.co.uk> wrote:
>
> I forget when the use of variables as method names - for the $r->$_ bit - was introduced; it was probably perl 5.6.0, but it might be as late as 5.8.0. Either way, it should be safe for all but paleolithic environments.

As far as I know it was in 5.000; certainly it was in 5.003 at least.