Use attrs(), styles(), properties() as getters

[d3]

Use attrs(), styles(), properties() as getters

[mbostock]

If you want to use this module, you just need to add this to your index.js:

import "d3-selection-multi";

However, you must make sure that the version of d3-selection-multi you’re using is compatible with the version of d3-selection you’re using. The latest d3-selection version is 0.7, and assuming you want that, you’ll need d3-selection-multi 0.2.10, which I just released. (If they’re not compatible, then d3-selection-multi uses its own internal version of d3-selection, and you’ll get duplicate code.)

Back to the issue at hand, I think returning maps is probably a bad idea because they would be expensive to compute. It might be reasonable for attributes, which are defined explicitly for each node, but it would be a very large set of values for styles or properties. For example, on d3js.org getComputedStyle(document.body).length returns 262. Similarly, size = 0; for (var property in document.body) ++size is 222, though if you ignore properties defined on the prototype chain, it is zero. I suppose if you restricted it to only directly-assigned styles and directly-assigned properties it might be more reasonable, but then the problem is it wouldn’t be consistent with the getter mode of selection.style (which is returns the computed style) and selection.property (which includes inherited properties).