How to use same data / labels on two y axes - Javascript Chart.js

Javascript examples for Chart.js:Chart Label

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Description

How to use same data / labels on two y axes

Demo Code

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<html>
   <head> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.6.0/Chart.min.js"></script> 
      <script type="text/javascript">
    window.onload=function(){//from ww  w  .  ja  v  a  2s .  c  o  m
Chart.plugins.register({
   beforeInit: function(chart) {
      chart.options.scales.yAxes[1].ticks.suggestedMin = Math.min.apply(this, chart.data.datasets[0].data);
      chart.options.scales.yAxes[1].ticks.suggestedMax = Math.max.apply(this, chart.data.datasets[0].data);
   }
});
var chart = new Chart(ctx, {
   type: 'line',
   data: {
      labels: ['Jan', 'Feb', 'Mar', 'Apr', 'May'],
      datasets: [{
         label: 'LINE',
         data: [3, 1, 4, 2, 5],
         backgroundColor: 'rgba(0, 119, 290, 0.2)',
         borderColor: 'rgba(0, 119, 290, 0.6)',
         fill: false
      }]
   },
   options: {
      scales: {
         yAxes: [{
            id: 'y-axis-0',
            position: 'left',
            ticks: {
               stepSize: 1
            }
         }, {
            id: 'y-axis-1',
            position: 'right',
            ticks: {
               stepSize: 1
            }
         }]
      }
   }
});
    }

      </script> 
   </head> 
   <body> 
      <canvas id="ctx"></canvas>  
   </body>
</html>

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