I'm just going to throw this out there, but I almost always consider using #() instead of (fn []) to be bad practice. Like all syntactic sugar, it has its place, but I reach for fn more often then not, because it allows me to name the arguments and track in my mind the data with which I am working. % means nothing to me, (fn [person]) at least gives me, as the reader of your code, some context to go on when trying to parse what you've written.
So I see it as a few less characters, at the expense of harder to understand code. Timothy On Fri, Aug 16, 2013 at 1:49 PM, Gregg Reynolds <d...@mobileink.com> wrote: > On Tue, Aug 13, 2013 at 1:50 PM, John D. Hume <duelin.mark...@gmail.com> > wrote: > > Though in some cases the performance impact could be significant, my > concern > > is readability. My understanding of the concept of partial function > > application is that it's about supplying some but not all of the > arguments. > > So when I see `partial` in code, I expect more arguments to be supplied > > later, which is confusing when that's not the case. (Obviously context > can > > make it easy to see that there will be no more arguments, but often that > > context is not present.) > > > > +1. Using partial to convert a unary func into a nullary func when > #() is available strikes me as malpractice. Suppose you were to come > across something like this in legacy code: > > >> (do-work (partial say-hello "bob")) > > For me, the natural inference would be that say-hello must want at > least one more arg (otherwise why partial?), so do-work must be > feeding some arg to the result of (partial say-hello "bob"), like > adding "Don't worry, we're not watching you", in case the NSA owns > do-work. Execution efficiency aside, downstream programmer confusion > due to implied semantics also has a cost. > > -Gregg > > -- > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/groups/opt_out. > -- “One of the main causes of the fall of the Roman Empire was that–lacking zero–they had no way to indicate successful termination of their C programs.” (Robert Firth) -- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
