D3.js donut chart

HTML

<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="http://d3js.org/d3.v3.min.js"></script>

CSS

body {
		  background: #eeeeee;
		}

JavaScript

$(document).ready(function() {

  

  function customSort(arr) {
    if (arr)

 arr.filter((key, idx) => arr.lastIndexOf(key) === idx).sort((a, b) => a < b ? -1 : 1);
    
    return arr

  }
  
  
  let result = customSort([8, 5, 5, 5, 5, 1, 1, 1, 4, 4])
console.log("result", result);

});