From: Eric Cooper <ecc@cmu.edu>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Having '<<', why to use '|>' ?
Date: Mon, 17 Sep 2007 14:59:11 -0400 [thread overview]
Message-ID: <20070917185911.GB21078@stratocaster.home> (raw)
In-Reply-To: <20070917163617.0e6e0e7c@localhost.localdomain>
On Mon, Sep 17, 2007 at 04:36:17PM +0200, Fabrice Marchant wrote:
> let ( << ) f g x = f (g x)
> let ( |> ) x f = f x
> I usually use '<<' and wonder if we can always supersede '|>' by
> this operator ? Does it exists a case where the use of '|>' is
> better ?
I think it's just a matter of style. Your |> operator lets you write
"pipelines" similar to the Unix shell, in which evaluation flows
from left to right. I've typically used this when I'm applying the
function to all its arguments. I tend to use the traditional
composition operator (your <<), when I'm combining and passing
functional values around.
--
Eric Cooper e c c @ c m u . e d u
next prev parent reply other threads:[~2007-09-17 18:58 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-17 14:36 Fabrice Marchant
2007-09-17 18:59 ` Eric Cooper [this message]
2007-09-17 19:45 ` [Caml-list] " Fabrice Marchant
2007-09-17 22:24 ` Julien Moutinho
2007-09-18 5:39 ` Fabrice Marchant
2007-09-18 8:53 ` Julien Moutinho
2007-09-18 9:09 ` Julien Moutinho
2007-09-18 14:12 ` Fabrice Marchant
2007-09-18 16:42 ` Jon Harrop
2007-09-18 20:41 ` skaller
2007-09-19 19:49 ` Fabrice Marchant
2007-09-19 21:56 ` Vincent Aravantinos
2007-09-20 13:42 ` Ashish Agarwal
2007-09-20 18:37 ` Gabriel Kerneis
2007-09-21 20:58 ` Harrison, John R
2007-09-21 21:44 ` Karl Zilles
2007-09-20 14:39 Aaron Bohannon
2007-09-22 15:22 ` Nicolas Pouillard
2007-09-22 15:43 ` Daniel Bünzli
2007-09-22 23:55 ` Christian Stork
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