1 files changed, 14 insertions, 0 deletions
diff --git a/lib/reduce.js b/lib/reduce.js
new file mode 100644
index 0000000..51b736a
--- /dev/null
+++ b/lib/reduce.js
@@ -0,0 +1,14 @@
+'use strict';
+
+import eachOfSeries from './eachOfSeries';
+
+export default function reduce(arr, memo, iterator, cb) {
+    eachOfSeries(arr, function(x, i, cb) {
+        iterator(memo, x, function(err, v) {
+            memo = v;
+            cb(err);
+        });
+    }, function(err) {
+        cb(err, memo);
+    });
+}