Change Highcharts tooltip formatter from chart Object , after chart is rendered
问题 I have found that I can change series with setData, and I know I can modify Max values with .setExtremes , but I cannot figure out how to set the tooltip formatter from the chart object. How do I update that field ? If i have a chart object , how do I update its tooltip formatter property ? and How about the plotOptions tooltip formatter? What I have tried : chart1.tooltip.formatter = function() {return ''+this.series.name +'example: '+ this.y +'example';}; But nothing changed in my tooltips