Noissue - Use suffixes function

lib/domain.js

Index: lib/domain.js
===================================================================
--- a/lib/domain.js
+++ b/lib/domain.js
@@ -41,29 +41,37 @@
 
 /**
  * Yields all suffixes for a domain. For example, given the domain
  * <code>www.example.com</code>, this function yields
  * <code>www.example.com</code>, <code>example.com</code>, and
  * <code>com</code>, in that order.
  *
  * @param {string} domain The domain.
+ * @param {boolean} [includeBlank] Whether to include the blank suffix at the
+ *   end.
+ *
  * @yields {string} The next suffix for the domain.
  */
-function* suffixes(domain)
+function* suffixes(domain, includeBlank = false)
 {
   while (domain != "")
   {
     yield domain;
 
     let dotIndex = domain.indexOf(".");
     domain = dotIndex == -1 ? "" : domain.substr(dotIndex + 1);
   }
+
+  if (includeBlank)
+    yield "";
 }
 
+exports.suffixes = suffixes;
+
 /**
  * Checks whether the given hostname is a domain.
  *
  * @param {string} hostname
  * @returns {boolean}
  */
 function isDomain(hostname)
 {