how would I update a component variable in callback?

[grimace]

I'm trying to update an ng2 component variable from my mouseOver callback, but I can't seem to update any member variables in my component
var enter = svg.enter() .append("circle") .attr("r", 10) .on("mouseover", _mouseOver) .on("mouseout",_mouseOut)

[tomwanzek]

Please use this issues log for (suspected) bugs and feature requests related to this service only. For general "how to" questions, please use StackOverflow. Thanks for understanding. 😄

By the same token, please see the following related SO answer, I provided to a similar question.