Showing negative values on tooltip - Javascript highcharts

Javascript examples for highcharts:Chart Tooltip

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Description

Showing negative values on tooltip

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <title>Highcharts Demo</title> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
   </head> 
   <body> 
      <script src="https://code.highcharts.com/highcharts.js"></script> 
      <div id="container" style="height: 400px"></div> 
      <script type="text/javascript">
Highcharts.chart('container', {
    xAxis: {/* w w  w.j  a  v  a 2 s  .c om*/
        categories: [
            'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun',
            'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'
        ]
    },
    tooltip: {
        shared: true,
        formatter: function () {
           return `<strong>Series 1</strong>: ${this.points[0].y}`;
        }
    },
      yAxis: [{
        min: 0,
    }],
    series: [{
        data: [-29.9, 71.5, 106.4, 129.2, 144.0, 176.0, -30.6, 148.5, 216.4, 194.1, 95.6, 54.4]
    }, {
        data: [0,0,0,0,0,0,0,0,0,0,0,0],
        color: 'rgba(0,0,0,0)',
        showInLegend: false
    }]
});

      </script>  
   </body>
</html>

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