Highcharts

Creating a dynamic chart from spreadsheet data.
<html>
<script src="https://jspreadsheet.com/v9/jspreadsheet.js"></script>
<link rel="stylesheet" href="https://jspreadsheet.com/v9/jspreadsheet.css" type="text/css" />
<script src="https://jsuites.net/v5/jsuites.js"></script>
<link rel="stylesheet" href="https://jsuites.net/v5/jsuites.css" type="text/css" />

<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Material+Icons" />

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://code.highcharts.com/highcharts.js"></script>

<div id="container"></div>
<div id="spreadsheet"></div>

<script>
let data = [
    ['Tokyo', 7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6],
    ['New York', -0.2, 0.8, 5.7, 11.3, 17.0, 22.0, 24.8, 24.1, 20.1, 14.1, 8.6, 2.5],
    ['Berlin', -0.9, 0.6, 3.5, 8.4, 13.5, 17.0, 18.6, 17.9, 14.3, 9.0, 3.9, 1.0],
    ['London', 3.9, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8],
];

let update = function (instance, cell, x, y, value) {
    // If the related series does not exists create a new one
    if (! chart.series[y]) {
        // Create a new series row
        let row = [];
        for (i = 1; i < data[y].length; i++) {
            row.push(parseFloat(data[y][i]));
        }
        // Append new series to the chart
        chart.addSeries({ name:data[y][0], data:row });
    } else {
        if (x == 0) {
            // Update legend
            chart.series[y].update({ name:value });
        } else {
            // Update chart data
            chart.series[y].data[x-1].update({ y:parseFloat(value) });
        }
    }
}

jspreadsheet(document.getElementById('spreadsheet'), {
    worksheets: [{
        data:data,
        defaultColWidth: 60,
        columns: [
            { type: 'text', width:'150' },
        ],
    }],
    onchange: update,
});

let chart = null;

chart = Highcharts.chart('container', {
    title: {
        text: 'Monthly Average Temperature',
        x: -20 //center
    },
    subtitle: {
        text: 'Source: WorldClimate.com',
        x: -20
    },
    xAxis: {
        categories: ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
            'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']
    },
    yAxis: {
        title: {
            text: 'Temperature (°C)'
        },
        plotLines: [{
            value: 0,
            width: 1,
            color: '#808080'
        }]
    },
    tooltip: {
        valueSuffix: '°C'
    },
    legend: {
        layout: 'vertical',
        align: 'right',
        verticalAlign: 'middle',
        borderWidth: 0
    },
    series: [{
        name: 'Tokyo',
        data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6]
    }, {
        name: 'New York',
        data: [-0.2, 0.8, 5.7, 11.3, 17.0, 22.0, 24.8, 24.1, 20.1, 14.1, 8.6, 2.5]
    }, {
        name: 'Berlin',
        data: [-0.9, 0.6, 3.5, 8.4, 13.5, 17.0, 18.6, 17.9, 14.3, 9.0, 3.9, 1.0]
    }, {
        name: 'London',
        data: [3.9, 4.2, 5.7, 8.5, 11.9, 15.2, 17.0, 16.6, 14.2, 10.3, 6.6, 4.8]
    }]
});
</script>
</html>
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