D3 v4 - Accessing selection array and find corresponding element

Question

I\'m trying to get a constraint relaxing to work for my piechart. It is based on this example https://jsfiddle.net/thudfactor/HdwTH/ but the relaxing method used seems not t

Answer 1

In D3 4.0, selections are not arrays anymore. According to the API:

Selections no longer subclass Array using prototype chain injection; they are now plain objects, improving performance.

So, if you console.log(textLabels), you're gonna see something like this:

{_groups: Array[1], _parents: Array[1]}

Depending on exactly what are you selecting. From there, you can access your array using textLabels._groups, for instance.

For having an array, you have to use selection.nodes(), which, according to the API:

Returns an array of all (non-null) elements in this selection.