First commit.

Signed-off-by: Chen Xiao <abigwc@gmail.com>

client/node_modules/d3-selection/src/selection/selectAll.js

@@ -0,0 +1,25 @@
+import {Selection} from "./index.js";
+import array from "../array.js";
+import selectorAll from "../selectorAll.js";
+
+function arrayAll(select) {
+  return function() {
+    return array(select.apply(this, arguments));
+  };
+}
+
+export default function(select) {
+  if (typeof select === "function") select = arrayAll(select);
+  else select = selectorAll(select);
+
+  for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {
+    for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
+      if (node = group[i]) {
+        subgroups.push(select.call(node, node.__data__, i, group));
+        parents.push(node);
+      }
+    }
+  }
+
+  return new Selection(subgroups, parents);
+}