title: json data format in firebase - are arrays supported? And/Or, if only objects are supported, can dictionaries be numbered with integers?
body: <p>I am tinkering with firebase and curious about the data structure. Browsing to my database, firebase allows me to modify the structure and data in my database. But it seems that firebase only supports objects (and dictionaries for lists). </p>
  
  <p>I want to know if arrays are supported. I would also like to know if dictionary items can be named with integers - the firebase interface only inserts strings as names which makes me concerned about ordering records.</p>
  
  <p>Here is a sample of json created through firebase interface:</p>
  
  <pre><code>{
   "dg":{
    "users":{
     "rein":{
      "searches":{
       "0":{
        "urls":"http://reinpetersen.com,http://www.reinpetersen.com",
        "keyphrases":"rein  petersen,reinsbrain,programmer turned kitesurfer"
       }
      }
     },
     "jacqui":{
      "searches":{
       "0":{
        "urls":"http://www.diving-fiji.com,http://diving-fiji.com",
        "keyphrases":"diving marine conservation, diving fiji"
       }
      }
     }
    },
    "crawl_list":{
     "1":{
      "urls":"http://www.diving-fiji.com,http://diving-fiji.com",
      "keyphrases":"diving marine conservation, diving fiji"
     },
     "0":{
      "urls":"http://reinpetersen.com,http://www.reinpetersen.com",
      "keyphrases":"rein  petersen,reinsbrain,programmer turned kitesurfer"
     }
    }
   }
  }
  </code></pre>
  
  <p>Obviously, for my lists, I want the dictionary item names to be integers so i can ensure sorting is correct.</p>