Accessing next Elements Name in Highcharts Tooltip -

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how can next elements name in highcharts

for example

 series: [{ name: 'weight', data: [50, 48, 80, 70]},            { name: 'height',data: [5.8, 5.1, 6.1, 6.0]}          ]      tooltip: {                formatter: function(){         return this.series.name;//i want return here next elements name there way        }          }

in above tooltip iam returning current element name, there way immediate next elements name there..?

you can use shared tooltip, take look: http://api.highcharts.com/highcharts#tooltip.shared


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