flow like the river

BACK_BACK/node_modules/defaults/index.js

@@ -0,0 +1,13 @@
+var clone = require('clone');
+
+module.exports = function(options, defaults) {
+  options = options || {};
+
+  Object.keys(defaults).forEach(function(key) {
+    if (typeof options[key] === 'undefined') {
+      options[key] = clone(defaults[key]);
+    }
+  });
+
+  return options;
+};