d3 min, max, extent, sort

<!DOCTYPE html>
<html>
<head>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.2.3/d3.min.js"></script>
  <script src="https://cdn.jsdelivr.net/lodash/4/lodash.min.js"></script>
  <meta charset="utf-8">
  <title>d3 min, max, extent, sort</title>
</head>
<body>

//
  // buscando el maximo, sobre d2 
  // 4 metodos 
  //
  console.log(Math.max.apply(Math, d2.map(function(d){return d.value;})));

let max = 0;
  for(let i = 0; i < d2.length; i++) {
    if(d2[i].value > max) {
      max = d2[i].value;
    }
  }
  console.log(max)

// usando d3
  console.log( d3.max(d2.map(function(d){return d.value;})) );
   
  // usando _ (lodash)
  console.log(_.maxBy(d2, 'value').value)
</script>
  
</body>
</html>

https://cdnjs.cloudflare.com/ajax/libs/d3/4.2.3/d3.min.js

https://cdn.jsdelivr.net/lodash/4/lodash.min.js