[Haskell] is $ a no-op?

Jacques Carette carette at mcmaster.ca
Wed Oct 13 13:24:36 EDT 2004

> > --  It's kind of like an converse map.
> I have attempted, unsuccessfully, to write flist above in a point-free 
> manner.  Is it possible?

> Of course it is, but why?
> flist = flip (map . flip ($))

Some functions are simpler point-free, others are simpler with points.  I
was curious about this one (I like the pointwise version better).

Also, the statement "It's kind of like a converse map" becomes quite clear
from the point-free way to write it, while still not so obvious in the
pointwise version.


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