Manipulate elements by binding new data

Question

I am trying to work out how to update some D3.js elements just by binding new data. I\'m not actually sure if this is possible or not, but it feels like it should be.

So

Answer 1

A very good resource for adding new data to an existing visualization is the official tutorial on updating data.

http://bl.ocks.org/mbostock/3808221

The main takeaway is that you want to define a key function when you call data so that d3 can keep track of which data is new, vs which data is old.