On Wed, 24 Nov 2010 22:51:09 +0100
Daniel Werner <daniel.d.wer...@googlemail.com> wrote:
> On 24 November 2010 21:40, Mike Meyer
> <mwm-keyword-googlegroups.620...@mired.org> wrote:
> > Could someone explain where this urge to write (-> expr (func arg))
> > instead of (func expr arg) comes from?
>
> I like to use -> and ->> because they allow me to add more steps to
> the "pipeline" as needed, without requiring ever more deeply nested
> parentheses. Of course, the examples you cited were intentionally
> trivial
Those cases weren't "intentionally trivial", they were the
point. What's the motive for using -> when there's only one form after
the expression? I get why you'd do it with two or more forms - it
reduces the nesting, and reading left-to right follows the evaluation
order. But with just one form it's liable to have the opposite effect
on nesting, and it makes the evaluation order read zig-zag.
<mike
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Mike Meyer <m...@mired.org> http://www.mired.org/consulting.html
Independent Network/Unix/Perforce consultant, email for more information.
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