Chart.js change hover text

Question

When I hover over the data point, that is in march and has a value of 15, it says january 15 instead of march 15, but it's at the correct location. Is there anyway to fix this?

<!DOCTYPE html>
<html>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.js"></script>
<body>
<canvas id="myChart" style="width:100%;max-width:700px"></canvas>

<script>
var xyValues = [
  {x:"March", y:15},

];

new Chart("myChart", {
  type: "scatter",
  data: {
    datasets: [{
      pointRadius: 4,
      pointBackgroundColor: "rgb(0,0,255)",
      data: xyValues
    }]
  },
  options: {
    legend: {display: false},
    scales: {
      xAxes: [{ type: 'category', labels: ['January', 'February', 'March', 'April', 'May', 'June'] }],
      yAxes: [{ticks: {min: 6, max:16}}],
    }
  }
});
</script>

</body>
</html>

emptyhua emptyhua · Accepted Answer · 2021-11-05T13:11:20

Just give january and february a null value.

<!DOCTYPE html>
<html>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.4/Chart.js"></script>
<body>
<canvas id="myChart" style="width:100%;max-width:700px"></canvas>

<script>
var xyValues = [
  null, null,
  {x:"March", y:15},
];

new Chart("myChart", {
  type: "scatter",
  data: {
    datasets: [{
      pointRadius: 4,
      pointBackgroundColor: "rgb(0,0,255)",
      data: xyValues
    }]
  },
  options: {
    legend: {display: false},
    scales: {
      xAxes: [{ type: 'category', labels: ['January', 'February', 'March', 'April', 'May', 'June'] }],
      yAxes: [{ticks: {min: 6, max:16}}],
    }
  }
});
</script>

</body>
</html>

Chart.js change hover text

1 Answers