How to access the data from return JSON from webservice in javascript or jquery

Question

Hi i have a return json data which returns the webservice The structure of webservice is like that:

jsonp1332655154667({"products": [{"uid": "37",
"samsid": "hjk",
"name": "Science%20Essentials%2010%20AC%20edn",
"shortname": "scienceessentials10",
"description": "Science%20Essentials%2010%20ACE%20is%20the%20fourth%20in%20a%20series%20of%20four%20books%20designed%20for%20the%20National%20Curriculum.%20",
"generated": "3/25/2012%205:59:19%20AM",
"Description": "Science%20Essentials%2010%20ACE%20is%20the%20fourth%20in%20a%20series%20of%20four%20books%20designed%20for%20the%20National%20Curriculum.%20",
"PublishingCompany": "Macmillan%20Australia",
"Service": "OneStopScience",
"Service": "OneStopDigital",
"Icon": "http://curriculumplatform.s3.amazonaws.com/prod/icons/brain48.png",
"Country": "Australia",
"Shortname": "scienceessentials10",
"MarketingSite": "http%3a%2f%2fwww.macmillan.com.au%2fsecondary%2fonix%2fall%2f6F597241EFC0E43DCA257791001CAFC0%3fopen%26div%3dSecondary%26cat%3dScience%253EAustralian%252BCurriculum%26template%3ddomSecondary%26ed%3dsite%2fseced31.nsf",
"Skin": "OneStopScience%20Green"},
"tag":"s_science"'
"tag":"s_maths"'
"tag":"s_arts",
{"uid": "5",}]})

I have three "tag" elements. but when we access the products.tag it gives always last element like:s_arts. Is there any way to find out all the elements eg:s_science,s_maths,s_arts. please help.

Answer 1

It is invalid json, your tag should be:

...,
"tag": ["s_science", "s_maths", "s_arts" ],
...

Then product.tag would be an array that you could access successfully

Regards

Answer 2

If you have multiple keys in the same object, you're going to get undefined behaviour. Only one will be preserved, and since pairs are not ordered, you can't guarantee which you'll get.

In short: the webservice is returning you faulty data. If multiple tags are expected, the service should return an array of values in the tag attribute:

...
"tag":["s_science", "s_maths", "s_arts"],
...

Answer 3

You need to send the tags as an array:

jsonp1332655154667({"products": [{"uid": "37",
"samsid": "hjk",
"name": "Science%20Essentials%2010%20AC%20edn",
"shortname": "scienceessentials10",
"description": "Science%20Essentials%2010%20ACE%20is%20the%20fourth%20in%20a%20series%20of%20four%20books%20designed%20for%20the%20National%20Curriculum.%20",
"generated": "3/25/2012%205:59:19%20AM",
"Description": "Science%20Essentials%2010%20ACE%20is%20the%20fourth%20in%20a%20series%20of%20four%20books%20designed%20for%20the%20National%20Curriculum.%20",
"PublishingCompany": "Macmillan%20Australia",
"Service": "OneStopScience",
"Service": "OneStopDigital",
"Icon": "http://curriculumplatform.s3.amazonaws.com/prod/icons/brain48.png",
"Country": "Australia",
"Shortname": "scienceessentials10",
"MarketingSite": "http%3a%2f%2fwww.macmillan.com.au%2fsecondary%2fonix%2fall%2f6F597241EFC0E43DCA257791001CAFC0%3fopen%26div%3dSecondary%26cat%3dScience%253EAustralian%252BCurriculum%26template%3ddomSecondary%26ed%3dsite%2fseced31.nsf",
"Skin": "OneStopScience%20Green"},
"tags": [
    "s_science"'
    "s_maths"'
    "s_arts"
],
{"uid": "5",}]})

Then you reference them as data.tags[0], data.tags[1], data.tags[2].

Answer 4

if your response is in this format

YourResponse = {
    "products" : [
                   {"uid" :"5", ......., "whtever":"someval"},
                   {"uid" :"6", ......., "whtever":"someval1"}
                 ]

};

you can use this

$(YourResponse).each(
function(objName, objValue) {
    console.log(objName); // wil get object name like uid, whtever
    console.log(objValue); // wil get object's value

});

so to get Tags you will have to take Tuan's suggestion; send them in array