diff --git a/src/scripts/lib/clone.js b/src/scripts/lib/clone.js
new file mode 100644
index 0000000..a6b9ae6
--- /dev/null
+++ b/src/scripts/lib/clone.js
@@ -0,0 +1,12 @@
+module.exports = function(obj) {
+  if (null === obj || "object" != typeof obj) {
+    return obj
+  }
+  var copy = obj.constructor()
+  for (var attr in obj) {
+    if (obj.hasOwnProperty(attr)) {
+      copy[attr] = obj[attr]
+    }
+  }
+  return copy
+}
diff --git a/tests/scripts/lib/clone.js b/tests/scripts/lib/clone.js
new file mode 100644
index 0000000..d991e24
--- /dev/null
+++ b/tests/scripts/lib/clone.js
@@ -0,0 +1,17 @@
+var tape = require("tape")
+
+var clone = require("../../../src/scripts/lib/clone")
+
+tape("test clone method", function(t) {
+  var obj = {one: 1, two: 2}
+  var cloned = clone(obj)
+
+  t.notEqual(obj, cloned, "cloned object isn't the object")
+
+  t.same(obj, cloned, "cloned object have the same values than object")
+
+  cloned.tree = 3
+  t.notSame(obj, cloned, "modified cloned object haven't the same values than object")
+
+  t.end()
+})