Another function in the same way is 'const :: a - b - a' (on haskell,
but easy to make in clojure if it doesn't exist) which
disregards the second argument and always returns the first.
This example is in haskell, but let's say that you're creating a
histogram, meaning that you go through a list
I wanted to add the map/cycle sample, then thougt of clojuredocs and
here you go:
http://clojuredocs.org/clojure_core/clojure.core/identity
On 14 Aug., 00:25, Alan Malloy a...@malloys.org wrote:
On Aug 13, 12:45 pm, jaime xiejianm...@gmail.com wrote:
I found an interesting function identity
While the use it as an argument case is important, it can also be useful when
writing functions that return functions, when you want to provide a do
nothing response.
In those cases, just don't forget that identity will throw if given ≠1
arguments.
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Hey guys, the clojuredocs link seems interesting and a good place for
studying/referencing Clojure. :-)
On Aug 15, 12:11 am, abp abp...@googlemail.com wrote:
I wanted to add the map/cycle sample, then thougt of clojuredocs and
here you go:
It's great to hear so many useful responses/tips -- it's really
helpful for people who is leaning Clojure, especially for a beginner
like me. Thank you all! -:)
On Aug 14, 12:45 am, jaime xiejianm...@gmail.com wrote:
I found an interesting function identity which will do nothing but
only
I found an interesting function identity which will do nothing but
only returns the parameter passed to it. The next minute I came up a
question: then what's the purpose of this function? -- I've tried to
figure out reasons of existence of identity.
The only reason that I can imagine is this:
(filter identity l) is a great way of removing all the false and nil
items from l
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On 08/13/2011 06:45 PM, jaime wrote:
The only reason that I can imagine is this: because we often use
higher-order functions, these higher-order functions will accept
functions as its parameters, in such a situation, when we want to use
a higher-order function but don't want to pass any real
On Sat, Aug 13, 2011 at 1:57 PM, Thorsten Wilms t...@freenet.de wrote:
On 08/13/2011 06:45 PM, jaime wrote:
Are there other functions for the same purpose?
I don't see how there could be, for the very same purpose. Though you might
want to consider splitting up functions some more, instead.
On Sat, Aug 13, 2011 at 9:45 AM, jaime xiejianm...@gmail.com wrote:
The only reason that I can imagine is this: because we often use
higher-order functions, these higher-order functions will accept
functions as its parameters, in such a situation, when we want to use
a higher-order function
On Aug 13, 12:45 pm, jaime xiejianm...@gmail.com wrote:
I found an interesting function identity which will do nothing but
only returns the parameter passed to it. The next minute I came up a
question: then what's the purpose of this function? -- I've tried to
figure out reasons of existence
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