How to Display Values in Tooltip for JavaScript Column Chart?

This article explains how to display additional values in the tooltip for a JavaScript column chart.

Solution

In the tooltipRender, replace the ${point.tooltip} placeholder with the value of tooltipMappingName1 (additional data). This modification allows to include extra information alongside the existing tooltip mapping name.

Code-snippet:

The following example shows how to display additional values in tooltip for javascript column chart.

var data = [{ x: 'GBR', y: 27, tooltipMappingName: 'Great Britain', tooltipMappingName1: 'Gold', }];
var chart = new ej.charts.Chart({
tooltip: { enable: true, format: "<b>${point.x} : ${point.y} (${point.tooltip})(${point.tooltip})</b>" },
series: [
   {
     tooltipMappingName: 'tooltipMappingName',
     dataSource: data,
   },
 ],
tooltipRender(args)  {
           args.text = args.text.replace('${point.tooltip}',                  args.series.dataSource[args.point.index].tooltipMappingName1);
},
});

The following screenshot illustrates the output of the above code snippet

View Sample in Stackblitz

Conclusion
I hope you enjoyed learning how to display values in tooltip for JavaScript Column Chart.

You can refer to our JavaScript Column Chart feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications.

You can also explore our JavaScript Column Chart Example to understand how to create and manipulate data.
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