Expression closures - use-cases for shortcut lambda syntax (blocks)

[John Cowan]

Steven Johnson scripsit:

> To be sure, terseness is a desirable quality in code, but never at the
> expense of clarity.

Clarity, in this case, is nothing but familiarity.

-- 
Cash registers don't really add and subtract;           John Cowan
        they only grind their gears.                    cowan at ccil.org
But then they don't really grind their gears, either;   
        they only obey the laws of physics.  --Unknown