If you are using NeoJSON you might want to take a look at the
NeoJSONObject class. It's basically a Dictionary with "JavaScript" behavior.
I.e. you can simply use messages to access keys and non existing keys
return nil. Your example can thus be written as:
val := dict1 key1 key2 key3.
When using NeoJSON you can simply configure your Mapper (Reader/Writer)
to use NeoJSONObject using #mapClass:
CU,
Udo
On 24/04/2017 20:04, Markus Böhm wrote:
Tx for advice.
P.S.: I got nested dictionaries after JSON API call at wunderground
weather API. To see all the response in Pharo inspector "live" is really
great :-)
BR Mike
On Mon, Apr 24, 2017 at 7:51 PM, Cyril Ferlicot D.
<cyril.ferli...@gmail.com
<mailto:cyril.ferli...@gmail.com>> wrote:
Le 24/04/2017 à 19:42, Markus Böhm a écrit :
> May I ask:
> What's the idiomatic way to retrieve values from nested dictionaries?
>
> (((dict1 at: 'key1') at: 'key2') at: 'key3')
>
> Are all the brackets really necessary?
>
> BR Mike
Hi,
To know if brackets are necessary you can use the "Format" option in
your method.
Right click -> format
or cmd/alt/ctrl + shift + f
In this case you can just write:
((dict1 at: 'key1') at: 'key2') at: 'key3'.
--
Cyril Ferlicot
https://ferlicot.fr
http://www.synectique.eu
2 rue Jacques Prévert 01,
59650 Villeneuve d'ascq France
