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javascriptchart.jslinechartreact-chartjs

How to display grid lines (without showing label) between each ticks?

enter image description here

I'm using Chart.js 2 (React-chart-js 2) to display a line chart.

Does anyone have any reference to keeping the vertical gridline between each displayed label?

It seems like the vertical gridline only showing on each displayed label.

Solution

  • You can make use of the scriptable options for this, see example that hides every second label, you can adjust it to hide a bigger step if you want.

    Example:

    var options = {
  type: 'line',
  data: {
    labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
    datasets: [{
        label: '# of Votes',
        data: [12, 19, 3, 5, 2, 3],
        borderWidth: 1
      },
      {
        label: '# of Points',
        data: [7, 11, 5, 8, 3, 7],
        borderWidth: 1
      }
    ]
  },
  options: {
    scales: {
      x: {
        ticks: {
          callback: function(val, index) {
            return index % 2 === 0 ? this.getLabelForValue(val) : '';
          }
        }
      }
    }
  }
}

var ctx = document.getElementById('chartJSContainer').getContext('2d');
new Chart(ctx, options);
    <body>
  <canvas id="chartJSContainer" width="600" height="400"></canvas>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.0.0/chart.js"></script>
</body>