On Sat, 16 Mar 2019 at 23:29, Roelof Wobben <r.wobben@home.nl> wrote:

oke,

how do I then get the url of the line where the name is z4.

I haven't directly tested, but probably...

imageUrl1 := levelsJson detect: [ :item | (item at: #name) = 'z4' ].

imageUrl := ((imageUrl1 at: #tiles) at: 1) at: #url

��

cheers -ben

I need that because I need that line and then the tiles part which is also a collection and then the url part which also is a part of a collection

Roelof



Op 16-3-2019 om 16:24 schreef Ben Coman:

On Sat, 16 Mar 2019 at 17:05, Roelof Wobben <r.wobben@home.nl> wrote:

Thanks,

With your hint I solved it this way :

imageUrl1 := levelsJson select: [ :item | (item at: #name) = 'z4' ].
imageUrl := (((imageUrl1 at: 1) at: #tiles) at: 1) at: #url

Cool. Minor tweak... if you use #detect: instead of #select:�� ��

which returns the first matched item rather than a collection

so you wont need ....(imageUrl1 at: 1).... part.

cheers -ben��

��

Roelof



Op 16-3-2019 om 01:04 schreef Ben Coman:

On Sat, 16 Mar 2019 at 04:21, Roelof Wobben <r.wobben@home.nl> wrote:

Hello,

I try to parse a json that differs some times

after parsing with neojson I see something like this��

"an Array(a Dictionary('height'->3640 'name'->'z0' 'tiles'->an Array(a Dictionary('url'->'http://lh3...TItQ4wwXk80sCHkqSS3JgTgmehYP-OItkO4hMwqH1agr-LfNRnxUCRSJKc_VQ=s0' 'x'->0 'y'->0 )) 'width'->404 ))"


is there a way I can filter out a dictonary where the name is equal to z4

Because of cultural differences, I'm not sure by "filter out" whether you mean include or exclude

but when filtering any collection type, #select: #detect and #reject: are you main go to messages.

If you inspect your dictionary and on the meta tab filter for ...*select*...��

you'll find #associationsSelect:

which works like this...

d := Dictionary newFromPairs: #( 1 2 3 4 5 6 ).

d associationsSelect: [ :asn | (asn key = 1) and: (asn value = 2) ]

d inspect. ==> Dictionary [1 item] (1->2 )

I notice there is not a similar #associationsReject:��

so if needed you could add your own considering...

d := Dictionary newFromPairs: #( 1 2 3 4 5 6 ).

d associations select: [ :asn | (asn key = 1) and: (asn value = 2) ]

d inspect. ==> Array [1 item] (1->2)

d := Dictionary newFromPairs: #( 1 2 3 4 5 6 ).

d associations reject: [ :asn | (asn key = 1) and: (asn value = 2) ]

d inspect. ==> Array [2 items] (5->6 3->4)

cheers -ben