On 13/08/13 13:47, Jay Fields wrote:
Say you have a simple function: (defn do-work [f] (f))
When you want to call do-work you need a function, let's pretend we
want to use this function: (defn say-hello [n] (println "hello" n))
Which of the following solutions do you prefer?
(do-work (partial say-hello "bob"))
(do-work #(say-hello "bob"))
I'd been using partial (which I font-lock**), but a teammate recently
pointed out that partial's documentation explicitly calls out the fact
that the number of args to partial should be less than the number of
args to f. In practice it's been working 'fine', but I can't help but
wonder if I'm sacrificing something I'm not aware of (performance?)
** with a font-lock, using partial *displays* the same number of chars
as the reader macro solution, and I find it more readable when
everything is in the parenthesis. -
http://blog.jayfields.com/2013/05/emacs-lisp-font-lock-for-clojures.html
since 'partial' & 'comp' will give you back a function with varargs, it
might be a tiny bit faster if you use #()...
Jim
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