Plotly bar graph 1

HTML

<script src="https://cdn.plot.ly/plotly-latest.min.js"></script>
<h1>
  Single bar expected, none seen
</h1>
<div id="myDiv1"></div>
<h1>
  Second datapoint added
</h1>
<div id="myDiv2"></div>

JavaScript

const date = 1564012800000;

var data = [
  {
    x: [date],
    y: [2000],
    type: 'bar',
    name: 'Blabla'
  },
];

const layout = 
      {
        xaxis: { type: 'date', range: [1563958936278, 1564131736278] }
      }

Plotly.newPlot('myDiv1', data, layout)


var data2 = [
  {
    x: [date - 86400000, date],
    y: [null, 2000],
    type: 'bar',
    name: 'Blabla'
  },
];

const layout2 = 
      {
        xaxis: { type: 'date', range: [1563958936278, 1564131736278] }
      }

Plotly.newPlot('myDiv2', data2, layout2);