1 files changed, 12 insertions, 0 deletions
diff --git a/lib/util.js b/lib/util.js
index e4cf415..57183d2 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -186,3 +186,15 @@ u.pullSlice = function (start, end) {
     }
   }
 }
+
+u.mergeOpts = function (a, b) {
+  var obj = {}, k
+  for (k in a) {
+    obj[k] = a[k]
+  }
+  for (k in b) {
+    if (b[k] != null) obj[k] = b[k]
+    else delete obj[k]
+  }
+  return obj
+}