title: Get Maximum value from JSON object using javascript?
body: <p>I have JSON like</p>
  
  <pre><code>var JObject = [
       {
          a:"A1",
          b:100,
          c:800
       },
       {
         a:"B1",
         b:300, 
         c:400
        } 
    ];
  </code></pre>
  
  <p>I need maximum value from this JSON...it has to return 800 if it return key and column index</p>