On 10/26/2011 05:50 AM, Chas Emerick wrote:
Certainly are in ours: http://shop.oreilly.com/product/0636920013754.do
I'm sure they're mentioned in Programming Clojure 2ed as well.
Yes, they will be in Programming Clojure 2ed
Cheers,
Aaron Bedra
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You receiv
Fogus confirmed it is intended and will reply when he gets a chance.
I'm starting to see why - the values are read as literals and so forms
are read as literals and not evaluated. I expect many people will
find this behavior surprising on first encounter...
On Oct 26, 8:55 am, Chouser wrote:
> I
I should also mention that the reader form is not record-specific - it
works on any Java object:
user=> #java.util.Date[1319639275929]
#
user=> #java.lang.String["abcdef"]
"abcdef"
user=> #java.awt.Point[1 2]
#
On Oct 26, 8:24 am, Alex Miller wrote:
> I need to correct that p2 and m1 should not
On Wed, Oct 26, 2011 at 9:24 AM, Alex Miller wrote:
> I need to correct that p2 and m1 should not have parens around
> them sorry about that. Seemed obvious when I read it again this
> morning.
>
> The literal reader forms are even trickier in how they treat embedded
> expressions. They seem
I need to correct that p2 and m1 should not have parens around
them sorry about that. Seemed obvious when I read it again this
morning.
The literal reader forms are even trickier in how they treat embedded
expressions. They seem to preserve (and not evaluate) the quoted
forms?
user=> (def p
Certainly are in ours: http://shop.oreilly.com/product/0636920013754.do
I'm sure they're mentioned in Programming Clojure 2ed as well.
- Chas
On Oct 26, 2011, at 5:10 AM, Shantanu Kumar wrote:
> Does anybody know if these changes are going to be covered in the
> newer Clojure books/editions?
>
Does anybody know if these changes are going to be covered in the
newer Clojure books/editions?
Regards,
Shantanu
On Oct 26, 12:02 pm, David Powell wrote:
> Also, the factory fns are available when you require/use the relevant
> namespace, so the client doesn't have to use import as well.
>
> --
Also, the factory fns are available when you require/use the relevant
namespace, so the client doesn't have to use import as well.
--
Dave
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+1
A further argument in favor of your choices is that p3 and m2 both work
great with higher-order fns, which I didn't immediately find a way to do
with any of the others:
user=> (map (partial apply ->Person) [["bob" "loblaw"] ["stan" "sitwell"]])
(#user.Person{:first "bob", :last "loblaw"} #us
So I'm catching up with the 1.3 defrecord additions (best docs here
afaik: http://dev.clojure.org/display/design/defrecord+improvements -
will http://clojure.org/datatypes be updated?)
In 1.2, records were constructed only with the positional Java
constructor:
(defrecord Person [first last])
(
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