1 files changed, 19 insertions, 0 deletions
diff --git a/lib/transform.js b/lib/transform.js
new file mode 100644
index 0000000..3dddae8
--- /dev/null
+++ b/lib/transform.js
@@ -0,0 +1,19 @@
+'use strict';
+
+import isArray from 'lodash/isArray';
+
+import eachOf from './eachOf';
+
+export default function transform (arr, memo, iterator, callback) {
+    if (arguments.length === 3) {
+        callback = iterator;
+        iterator = memo;
+        memo = isArray(arr) ? [] : {};
+    }
+
+    eachOf(arr, function(v, k, cb) {
+        iterator(memo, v, k, cb);
+    }, function(err) {
+        callback(err, memo);
+    });
+}