title: Get column name from JSON
body: <p>I have the following sample JSON and I would like to get the name of the column like Dribbble, Behance ...</p>
  
  <pre><code>{ 
    status: 200,
    success: true,
    result: 
     [ { Dribbble: 'a',
         Behance: '',
         Blog: 'http://blog.invisionapp.com/reimagine-web-design-process/',
         Youtube: '',
         Vimeo: '' },
       { Dribbble: '',
         Behance: '',
         Blog: 'http://creative.mailchimp.com/paint-drips/?_ga=1.32574201.612462484.1431430487',
         Youtube: '',
         Vimeo: '' } ] 
  }
  </code></pre>
  
  <p>I'm using Request module and it returns JSON fine but I'm struggling to get the column name in string format. If I could get the column in number format at least, I would be able to know if it's the right column but I get two 0s instead.</p>
  
  <pre><code>request({
      url: url,
      json: true
  }, function (error, response, body) {
  
      if (!error &amp;&amp; response.statusCode === 200) {
          callback(body)
          var json = body.result;
  
          for (var key in json) {
              if (json.hasOwnProperty(key)) {
                  var column = Object.keys(key);
                  console.log(column[0]); 
              }
          }
  
      }
  })
  </code></pre>