jQuery addClass example

Change class name on click in jQuery

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.8.0/Chart.js"></script>
<canvas id="myChart" width="400" height="400"></canvas>

JavaScript

var ctx = document.getElementById('myChart');
  
  var myChart = new Chart(ctx, {
    type: 'radar',
		data: {
      labels: ['Running','Swimming','Eating','Cycling'],
      datasets: [{
          //data: [kategorie1, kategorie2, kategorie3, kategorie4]
        data: [12,15,20,30]
      }]
		},
    options: {
        legend: {
            display: false
        }
    }
});