mostly finished rewrite

public/node_modules/dom-helpers/esm/querySelectorAll.js

@@ -0,0 +1,11 @@
+var toArray = Function.prototype.bind.call(Function.prototype.call, [].slice);
+/**
+ * Runs `querySelectorAll` on a given element.
+ * 
+ * @param element the element
+ * @param selector the selector
+ */
+
+export default function qsa(element, selector) {
+  return toArray(element.querySelectorAll(selector));
+}