Dynamically Drawing a Line

[jeffpalus]

is there a way to Dynamically Drawing a Line (Adding points to a line in an animation)
Example: https://www.mapbox.com/mapbox.js/example/v1.0.0/dynamically-drawing-a-line/

[RobertoPepato]

This is a sample using points:

http://developers.arcgis.com/javascript/samples/layers_streamlayer/

You can use it as an insight to build your own using lines:

https://developers.arcgis.com/javascript/jsapi/polyline.html#polyline3

Let me know if it helps