title: How can i find the length of this Json object
body: <p>I want to find the length of this JSON object so any one tell me how can i get length of the JSON object...means i want to know how many data this json object contain.</p>
  
  <pre><code>var ddData = [{ "01":"United States",
                  "02":"United Kingdom",
                  "03":"Aruba",
                  "04":"United Kingdom",
                  "05":"Aruba",
                  "06":"Bahrain",
                  "07":"United Kingdom",
                  "08":"Algeria",
                  "09":"Andorra",
                  "10":"American Samoa",
                  "11":"United States"
               }]
  </code></pre>