Determine the First and Last Date from TimelineView

I have this timeline view and I wanted to get the first and last date, for example in this picture, I wanted to get the first date which is October 21 and the last date which is January 19. How can i do that?

Hi,

Here is the snippet https://snippet.dhtmlx.com/9711e1e68

Please check all properties of createTimelineView() method. It will be very useful for you while you are working with the Timeline view.
https://docs.dhtmlx.com/scheduler/api__scheduler_createtimelineview.html