CODEWITHSUNDEEP
jqueryjson
nanobar
nanobar

Reputation: 66475

Referencing JSON object by name

My markup where I get the JSON from using $.parseJSON (after replacing single quotes to double):

<a href="#" data-thumbslide="
  [{'slides':
    [
      { 'path' : 'img/slider-images/jeep_1.jpg' },
      { 'path' : 'img/slider-images/jeep_2.jpg' },
      { 'path' : 'img/slider-images/jeep_3.jpg', 'fullscreen' : 'img/slider-images/jeep_3-fs.jpg' },
      { 'path' : 'img/slider-images/jeep_4.jpg', 'fullscreen' : 'img/slider-images/jeep_4-fs.jpg'}
    ],
  },
  {'info':
    [
      { 'blurb' : 'Lorem ipsum dolor sit amet consquiteur' },
      { 'website' : 'http://www.google.co.uk' },
      { 'credits' : 'Warner bros productions' }
    ]
  }]">
  <div class="title"><h1>Jeep</h1></div>
</a>

I get an object like this: (result from firebug console log)

[Object { slides=[4]}, Object { info=[3]}]

each object looks something like this:

slides object inside JSON object

I can reference the objects like this:

jsonObject[0]['slides'][2].path
jsonObject[1]['info'][0].blurb

However I don't want to rely on the array order by number (so 0 is 'slides' and 1 is 'info') but reference them by name instead and not be reliant on the order. I think I can achieve this with a different JSON structure?

Upvotes: 3

Views: 6295

Answers (1)

nnnnnn
nnnnnn

Reputation: 150080

If you omit the outer [] array brackets and a couple of the {} brackets you can make 'slides' and 'info' properties of the same (non-array) object:

{
 'slides':
     [
       { 'path' : 'img/slider-images/jeep_1.jpg' },
       { 'path' : 'img/slider-images/jeep_2.jpg' },
       { 'path' : 'img/slider-images/jeep_3.jpg', 'fullscreen' : 'img/slider-images/jeep_3-fs.jpg' },
       { 'path' : 'img/slider-images/jeep_4.jpg', 'fullscreen' : 'img/slider-images/jeep_4-fs.jpg'}
     ],
 'info':
     [
       { 'blurb' : 'Lorem ipsum dolor sit amet consquiteur' },
       { 'website' : 'http://www.google.co.uk' },
       { 'credits' : 'Warner bros productions' }
     ]
}

And then you can access like this:

jsonObject['slides'][2].path     // OR jsonObject.slides[2].path
jsonObject['info'][0].blurb      // OR jsonObject.info[0].blurb

The 'slides' property needs to be an array of objects like you have it since each item is of the same type, but I notice that the 'info' object is an array containing objects that are all different. If you'll only have one 'blurb', 'website', 'credits' (or 'whatever') within 'info' you can restructure that part to remove the nested array and instead make 'blurb', etc. properties of a single nested object:

  {'slides':
    [
      { 'path' : 'img/slider-images/jeep_1.jpg' },
      { 'path' : 'img/slider-images/jeep_2.jpg' },
      { 'path' : 'img/slider-images/jeep_3.jpg', 'fullscreen' : 'img/slider-images/jeep_3-fs.jpg' },
      { 'path' : 'img/slider-images/jeep_4.jpg', 'fullscreen' : 'img/slider-images/jeep_4-fs.jpg'}
    ],
  'info': {
      'blurb' : 'Lorem ipsum dolor sit amet consquiteur',
      'website' : 'http://www.google.co.uk',
      'credits' : 'Warner bros productions'
    }
  }

Then you can say:

jsonObject['info'].blurb
// or
jsonObject.info.blurb
// or
jsonObject['info']['blurb']
// or
jsonObject.info['blurb']

While access to 'slides' will still be as above.

Upvotes: 3

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