Index: node_modules/d3-hierarchy/src/hierarchy/eachAfter.js
===================================================================
--- node_modules/d3-hierarchy/src/hierarchy/eachAfter.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
+++ node_modules/d3-hierarchy/src/hierarchy/eachAfter.js	(revision e4c61dd6cd86e06265bc2bd91adba84a0f04044a)
@@ -0,0 +1,15 @@
+export default function(callback, that) {
+  var node = this, nodes = [node], next = [], children, i, n, index = -1;
+  while (node = nodes.pop()) {
+    next.push(node);
+    if (children = node.children) {
+      for (i = 0, n = children.length; i < n; ++i) {
+        nodes.push(children[i]);
+      }
+    }
+  }
+  while (node = next.pop()) {
+    callback.call(that, node, ++index, this);
+  }
+  return this;
+}