HighCharts tooltip issue - highcharts

Question

im using a common function to generate linechart using highchart.for certain charttype i want tooltip without any pointformat and for another in want to use formatter funcction how to acheive this.From the below code charttype 1 tooltip diappear.
tooltip: {
valueSuffix: '',
pointFormat: (chartType == 1 ? '{series.name}:
{point.y}' : '' ) ,
shared: (chartType == 1 ? true : false),
formatter: function() {
if (chartType == 2) {
return '' + this.point.tooltip + ': ' + (chartType == 2 ? this.y.toFixed(1) : this.y.toFixed(0));
}
else {
return false;
}
}

Answer 1

If you want to disable option, use null value, not empty string (''). See: http://jsfiddle.net/Yrygy/133/
However I think that it would be better to add one if-else statement, instead of three one above another, see: http://jsfiddle.net/Yrygy/134/
var chartType = 1,
tooltip = {
valueSuffix: ''
};
if (chartType == 1) {
tooltip.pointFormat = '{series.name}: {point.y}';
tooltip.shared = true;
} else {
tooltip.shared = false;
tooltip.formatter = function () {
if (chartType == 2) {
return '' + this.point.tooltip + ': ' + (chartType == 2 ? this.y.toFixed(1) : this.y.toFixed(0));
} else {
return false;
}
}
}
And then create chart:
chart = new Highcharts.Chart({
tooltip: tooltip,
// other options
});