How to show xaxis lable o only data point and hide all others?

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👍:0

yes this is possible, you can achieve this by using the tick callback like so:

const data = [{
  x: 'Red',
  y: 10
}, {
  x: 'Yellow',
  y: 5
}, {
  x: 'Orange',
  y: 3
}]

var options = {
  type: 'line',
  data: {
    labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
    datasets: [{
      label: '# of Votes',
      data,
      borderWidth: 1,
      backgroundColor: 'red',
      borderColor: 'red',
      fill: false
    }]
  },
  options: {
    scales: {
      xAxes: [{
        ticks: {
          callback: (val, y, z, t) => (
            data.map(el => el.x).indexOf(val) >= 0 ? val : null
          )
        }
      }]
    }
  }
}

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/2.9.4/Chart.js" integrity="sha512-hZf9Qhp3rlDJBvAKvmiG+goaaKRZA6LKUO35oK6EsM0/kjPK32Yw7URqrq3Q+Nvbbt8Usss+IekL7CRn83dYmw==" crossorigin="anonymous"></script>
</body>

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