Chart.js #5609 test01

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.2/moment.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.2/Chart.min.js"></script>
<canvas id="myChart1"></canvas>
<canvas id="myChart2"></canvas>
<canvas id="myChart3"></canvas>
<canvas id="myChart4"></canvas>
<canvas id="myChart5"></canvas>
<canvas id="myChart6"></canvas>
<canvas id="myChart7"></canvas>
<canvas id="myChart8"></canvas>

JavaScript

var ctx1 = document.getElementById('myChart1').getContext('2d');
var chart1 = new Chart(ctx1, {
  type: 'bar',
  data: {
    labels: ['January'],
    datasets: [{
      data: [1]
    }]
  },
  options: {
    title: {
      display: true,
      text: '1. bar chart with category scale (offset: true, offsetGridLines: true)'
    },
    scales: {
      xAxes: [{
        type: 'category',
        offset: true,
        gridLines: {offsetGridLines: true},
      }],
      yAxes: [{
        ticks: {
          beginAtZero: true,
        }
      }]
    }
  }
});
var ctx2 = document.getElementById('myChart2').getContext('2d');
var chart2 = new Chart(ctx2, {
  type: 'bar',
  data: {
    labels: ['January','February'],
    datasets: [{
      data: [1,2]
    }]
  },
  options: {
    title: {
      display: true,
      text: '2. bar chart with category scale (offset: true, offsetGridLines: true)'
    },
    scales: {
      xAxes: [{
        type: 'category',
        offset: true,
        gridLines: {offsetGridLines: true},
      }],
      yAxes: [{
        ticks: {
          beginAtZero: true
        }
      }]
    }
  }
});
var ctx3 = document.getElementById('myChart3').getContext('2d');
var chart3 = new Chart(ctx3, {
  type: 'line',
  data: {
    labels: ['January'],
    datasets: [{
      data: [1]
    }]
  },
  options: {
    title: {
      display: true,
      text: '3. line chart with category scale (offset: true, offsetGridLines: true)'
    },
    scales: {
      xAxes: [{
        type: 'category',
        offset: true,
        gridLines: {offsetGridLines: true}
      }],
      yAxes: [{
        ticks: {
          beginAtZero: true
        }
      }]
    }
  }
});
var ctx4 = document.getElementById('myChart4').getContext('2d');
var chart4 = new Chart(ctx4, {
  type: 'line',
  data: {
    labels: ['January','February'],
    datasets: [{
      data: [1,2]
    }]
  },
  options: {
    title: {
      display: true,
      text: '4. line chart with category scale (offset: true,...