How can I delete all of the points from a highchar

问题:

Using HighCharts I want to delete all of the points from a series, so that I can add a new dataset. Is there a better approach than looping through all of the points, and removing them one by one like this?:

for(var i=0; i < chart.series[0].points.length; i++){
    chart.series[0].points[i].remove()
}

I have also seen references to ways of removing the entire series chart.series[0].remove(); This seems quicker to remove the points, but I don't understand how to create an empty series with the same properties and name that points can be added to, which is why I chose to delete the points.

回答1:

If you want to delete some points from your serie I sugest you to store your serie points, remove the points you want and then use setData to set your serie data again.

If you want to remove all points without remove the serie you can use chart.series[0].setData([]);.

You can use addPoint to add points one by one or setData for more than one.
There're some examples which shows how to do it.
demo
reference