title: Remove caution from json obj
body: <p>Here I attached json result. </p>
  
  <pre><code>"properties": {
                  "id": 99,
                  "county": "Ashe",
                  "cen_lat": 36.4343964583676,
                  "cen_long": -81.5004915302458,
                  "county_id": "5",
                  "extent": "[-9099469.85881319,4333729.96758589,-9044051.86962052,4381852.80674575]"
              }
  </code></pre>
  
  <p>when I read extent and getting result is </p>
  
  <blockquote>
    <p>"[-9099469.85881319,4333729.96758589,-9044051.86962052,4381852.80674575]"</p>
  </blockquote>
  
  <p>but I need </p>
  
  <blockquote>
    <p>[-9099469.85881319,4333729.96758589,-9044051.86962052,4381852.80674575]</p>
  </blockquote>
  
  <p>How can I get?</p>