d3.stratify, but returns a simple JSON structure.

[mbostock]

d3.stratify currently returns a d3.hierarchy instance, but sometimes you just want a simple JSON structure, equivalent to what you would pass to d3.hierarchy. For example, a simple API would be:

d3.hierarchy(d3.stratify(data, d => d.id, d => d.parentId))

[mbostock]

This will be especially useful if the layouts take a JSON structure as input (rather than a hierarchy instance) so that we can more easily implement immutable layouts #62.

[curran]

Yes, I ran into this desire as well just the other day.

[mbostock]

Closing due to inactivity.