first commit

node_modules/d3-array/src/union.js

@@ -0,0 +1,11 @@
+import {InternSet} from "internmap";
+
+export default function union(...others) {
+  const set = new InternSet();
+  for (const other of others) {
+    for (const o of other) {
+      set.add(o);
+    }
+  }
+  return set;
+}