Chartjs-Change line point to triangle in Chart.js

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Set pointStyle property to triangle for your dataset, like so :

...
datasets: [{
   label: 'Sales Point',
   data: salesData,
   borderColor: bdrColor,
   fill: false,
   pointStyle: 'triangle'
}]
...

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var chart = new Chart(ctx, {
   type: 'line',
   data: {
      labels: ['Jan', 'Feb', 'Mar', 'Apr', 'May'],
      datasets: [{
         label: 'Sales Point',
         data: [3, 1, 4, 2, 5],
         backgroundColor: 'rgba(0, 119, 290, 0.2)',
         borderColor: 'rgba(0, 119, 290, 0.6)',
         fill: false,
         pointRadius: 10,
         pointStyle: 'triangle'
      }]
   },
   options: {
      scales: {
         yAxes: [{
            ticks: {
               beginAtZero: true,
               stepSize: 1
            }
         }]
      }
   }
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.6.0/Chart.min.js"></script>
<canvas id="ctx"></canvas>

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