How to get data of parent node in d3.js

Question

I am doing nesting in D3 and in a nested element, I need to reach data object on its parent.

Right now I am doing

d3.select(this).node().parentNode._         


        

Answer 1

The other method I'm familiar with is to use .each() on the parent, and then deal with children within the closure:

d3.selectAll('.parent').each(function(parentDatum) {
    d3.select(this).selectAll('.child').each(function(childDatum) {
        // do stuff with parentDatum and childDatum here
    });
});