When creating dynamic highcharts, I utilize the series.addPoint method. While it successfully adds points, the chart does not move as shown in this example - jsfiddle. This results in potentially having 100 points on the screen.
How can I limit the display to only 10 points and hide the older ones?
The function Series.addPoint() has a third parameter that is a boolean used to enable shifting. If your series is not shifting, consider setting this third parameter to true.
Regarding the next part, have you considered whether "hiding" old data is the best approach? Typically, in a real-time graph, old data should be shifted off the end. If you find yourself dealing with too many data points, adjusting the x-axis size using Axis.setExtremes() may be beneficial. http://api.website.com/graphdata#Axis
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