n Behalf Of
> Markus Böhm
> Sent: 24 April 2017 18:42
> To: pharo-users@lists.pharo.org
> Subject: [Pharo-users] Hot to retrieve values from Nested Dictionaries
>
> 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
Markus Böhm
Sent: 24 April 2017 18:42
To: pharo-users@lists.pharo.org
Subject: [Pharo-users] Hot to retrieve values from Nested Dictionaries
May I ask:
What's the idiomatic way to retrieve values from nested dictionaries?
(((dict1 at: 'key1') at: 'key2') at
JsonObject has the doesNotUnderstand: trick too.
Esteban A. Maringolo wrote
> 2017-04-25 8:49 GMT-03:00 Markus Böhm <
> markus.boehm@
> >:
>> Tx, I tried Your proposal. Just as an example, it works:
>
>> P.S.: Editor in Playground shows NeoJSONObject keys in red color?
>
> It's highlight
2017-04-25 8:49 GMT-03:00 Markus Böhm :
> Tx, I tried Your proposal. Just as an example, it works:
> P.S.: Editor in Playground shows NeoJSONObject keys in red color?
It's highlighted in red because for the playground the keys are
selectors not implemented by any class in the image.
The key in
Tx, I tried Your proposal. Just as an example, it works:
(ZnClient new
url: 'http://api.wunderground.com/api/APIKEY/hourly/q/germany/munich.json
';
contentReader: [ :entity |
(NeoJSONReader on: entity readStream)
mapClass: NeoJSONObject;
propertyNamesAsSymbols: true;
2017-04-24 16:10 GMT-03:00 Ramon Leon :
> On 04/24/2017 11:16 AM, Esteban A. Maringolo wrote:>
>> For these use cases it
>> would be nice to have some sort of syntax sugar
>> as with the cascade operator, but with a chaining operator instead.
> This doesn't even require syntactic sugar, just objec
On 04/24/2017 11:16 AM, Esteban A. Maringolo wrote:> For these use cases
it would be nice to have some sort of syntax sugar
as with the cascade operator, but with a chaining operator instead.
This doesn't even require syntactic sugar, just objects, and this is a
more general problem even with
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 us
Maybe we could introduce `@` message, so one can chain them and then even
execute keyword without parenthesis
Dictionary>>@ aKey
^ at: aKey
dict @ 'key1' @ 'key2' @ 'key3'
dict @ 'key1' @ 'key2' @ 'key3' select: [ :each | ... ]
I'm always adding this when hacking around, maybe we could
For these use cases it would be nice to have some sort of syntax sugar
as with the cascade operator, but with a chaining operator instead.
The chaining operator would send the message to the result of the
previous statement instead of the original receiver as in the
semicolon cascade operator (;).
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. wrote:
> Le 24/04/2017 à 19:42, Markus Böhm a écrit :
> > May I ask:
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 "Forma
> On Apr 24, 2017, at 14:42, Markus Böhm wrote:
>
> 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?
I think so, without the parenthesis, it is interpreted as one mess
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
14 matches
Mail list logo
