JSFiddle - React, Tailwind, and code Playground

HTML

<h1>Sync Multiple Charts</h1>
<br/><!-- Just so that JSFiddle's Result label doesn't overlap the Chart -->
<div id="chartContainer1" style="height: 360px; width: 100%;"></div>
<div id="chartContainer2" style="height: 360px; width: 100%;"></div>
<script type="text/javascript" src="https://canvasjs.com/assets/script/jquery-1.11.1.min.js"></script>
<script type="text/javascript" src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
<script type="text/javascript">

JavaScript

var data_arr = [];
function getData(chart, url, field) {
  $.when($.getJSON(url,
                   function(json_data) {
    data_arr = [];
    json_data.feeds.forEach(function(data) {
      data_arr.push({
        x: new Date(data.created_at),
        y: parseFloat(data[field])
      });
    });
  })).then(function(){
    chart.options.data[0].dataPoints = data_arr;
    chart.render();
  });
}


var chart1 = new CanvasJS.Chart("chartContainer1", {
  title: {
    text: "Pressure"
  },
  axisX: {
    valueFormatString: "HH:mm TT",
    // labelAngle: -50
  },
  data: [{
    xValueType: "dateTime",
    type: "line",
    dataPoints: [],
  }]
});
getData(chart1, 'https://api.thingspeak.com/channels/713735/feeds.json?timezone=Europe/Warsaw&days=1&timescale=5', 'field2');





var chart2 = new CanvasJS.Chart("chartContainer2", {
  title: {
    text: "Temperature"
  },
  axisX: {
    valueFormatString: "HH:mm TT",
    // labelAngle: -50
  },
  data: [{
    xValueType: "dateTime",
    type: "line",
    dataPoints: [],
  }]
});
getData(chart2, 'https://api.thingspeak.com/channels/713735/feeds.json?timezone=Europe/Warsaw&days=1&timescale=5', 'field1');