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The * operator made me laugh out loud. Only Perl would have an operator called a "Whatever star". Although, I actually think a lot of the stuff Perl does is re
by delluminatus 12y ago
The * operator made me laugh out loud. Only Perl would have an operator called a "Whatever star".
Although, I actually think a lot of the stuff Perl does is really cool. I wouldn't want to have to maintain a codebase of it, but it never fails to be interesting. Like the whatever star. "*.value" basically saying, "Whatever value is here, gimme the value of it". It's different from a typical lambda declaration, but intuitive in its own way.
- munificent 12y ago> It's different from a typical lambda declaration, but intuitive in its own way. Isn't it pretty similar to Scala's use of "_"? I think _.value creates a one-parameter lambda in Scala.
- tormeh 12y agoYeah, but it would be neat if it was a word instead, for example "that". "*" is hilarious, though. How do you multiply in Perl if the star is taken? I also like that it's named "whatever star", reminds me of Scala's Pimp my Library feature[0] 0: http://www.artima.com/weblogs/viewpost.jsp?thread=179766 http://www.artima.com/weblogs/viewpost.jsp?thread=179766
- cygx 12y agoAn asterisk is only a Whatever if it's in term position: (* * *)(2, 3) will happily print 6.
- SwellJoe 12y agoI didn't find the whatever star funny until this point.
- pwr22 12y agoWhatever ;)
- Ultimatt 12y agoI'd like to point out there are magical errors put in to keep Perl6 code relatively sane too: > .map: ** * * * ** ===SORRY!=== Error while compiling <unknown file> Multiple HyperWhatevers and Whatevers may not be used together
- esaym 12y agoPerl has always had something called "context" :)
- muraiki 12y agoClojure has %: (map #(/ % 2) [2 4 6 8]) => (1 2 3 4) (map #(% 2) [#(- 2 %) #(* 2 %)]) => (0 4) (#(+ %1 %2 %3) 2 4 6) => 12