Highcharts Demo

author(s): Torstein Hønsi

by sperske

HTML

<script src="https://code.highcharts.com/highcharts.js"></script>

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

CSS

#container {
    min-width: 300px;
    max-width: 800px;
    margin: 0 auto;
}

JavaScript

Highcharts.chart('container', {

    title: {
        text: 'Highcharts with a shared tooltip formatter'
    },

    xAxis: {
        categories: [
            'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
            'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'
        ],
        crosshair: true
    },

    tooltip: {
        formatter: function () {
        let {points, x} = this;
        points = points.slice(1);
        const total = points.reduce((total, point) => total + point.y, 0);
        
        return `${x}<br/><strong>Total ${total}</strong>` + points.reduce((out, point) => `${out}<br/><strong>${point.series.name}</strong>:${point.y}`, '');
        /*
            return this.points.reduce(function (s, point) {
                return s + '<br/>' + point.series.name + ': ' +
                    point.y + 'm';
            }, '<b>' + this.x + '</b>');*/
        },
        shared: true
    },

    series: [{
        data: [1216.4, 1194.1, 195.6, 154.4, 129.9, 171.5, 1106.4, 1129.2, 1144.0, 1176.0, 1135.6, 1148.5]
    },{
        data: [29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5, 216.4, 194.1, 95.6, 54.4]
    }, {
        data: [216.4, 194.1, 95.6, 54.4, 29.9, 71.5, 106.4, 129.2, 144.0, 176.0, 135.6, 148.5]
    }]
});