Chartjs-Why are some react-chartjs-2 options being ignored?

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1👍

✅

Change scales.yAxis.gridLines to scales.yAxis.grid and it will work.

see Grid Line Configuration from Chart.js documentation or the Grid Configuration samples page.

Please take a look at below runnable JavaScript code and see how it works.

Please take a look at

new Chart('line-chart', {
  type: 'line',
  data: {
    labels: ['A', 'B', 'C', 'D', 'E', 'F', 'G'],
    datasets: [{
      label: 'My Dataset',
      data: [65, 59, 80, 81, 56, 55, 40],
      fill: false,
      borderColor: 'rgb(75, 192, 192)',
      tension: 0.2
    }]
  },
  options: {
    scales: {
      yAxis: {
        beginAtZero: true,
        grid: {
          color: 'rgb(0 ,0 ,255)',
          lineWidth: 0.5
        }
      }
    }
  }
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/3.1.1/chart.min.js"></script>
<canvas id="line-chart" height="100"></canvas>

0👍

React chart.js is not up to date with chart.js so you can’t use v3. Please use the v2 syntax since that is what react-chartjs uses.

https://www.chartjs.org/docs/2.9.4/axes/styling.html#grid-line-configuration

If you change yAxes: {gridLines: {color: 'red'}} to yAxes: [{gridLines: { color: 'red'}}] it should work as intended

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