title: Get value from JSON data from Firebase Database
body: <p>I receive a JSON data from my Firebase Real Time Database-</p>
  
  <p>This is the Json:</p>
  
  <pre><code>var data={
  "07:08:2017_16:57:48": {
  "fech": "07:08:2017",
  "hor": "16:57:48",
  "lat": -41.1515438,
  "lng": -71.4083591,
  "telef": ""
  },
  "07:08:2017_16:58:04": {
  "fech": "07:08:2017",
  "hor": "16:58:04",
  "lat": -41.1515438,
  "lng": -71.4083591,
  "telef": "2944895972"
  },
  "07:08:2017_16:58:05": {
  "fech": "07:08:2017",
  "hor": "16:58:05",
  "lat": -41.1515438,
  "lng": -71.4083591,
  "telef": "2944895972"
   }
   }
  </code></pre>
  
  <p>I need the lat values, but I dont understand how use the index on this case</p>
  
  <p>I tried this:</p>
  
  <pre><code>var dataj= JSON.parse(data);
  var latitud1= dataj[1]; 
  </code></pre>
  
  <p>any help?</p>