.

qwen/nodejs/node_modules/nodemon/lib/utils/clone.js

@@ -0,0 +1,40 @@
+module.exports = clone;
+
+// via http://stackoverflow.com/a/728694/22617
+function clone(obj) {
+  // Handle the 3 simple types, and null or undefined
+  if (null === obj || 'object' !== typeof obj) {
+    return obj;
+  }
+
+  var copy;
+
+  // Handle Date
+  if (obj instanceof Date) {
+    copy = new Date();
+    copy.setTime(obj.getTime());
+    return copy;
+  }
+
+  // Handle Array
+  if (obj instanceof Array) {
+    copy = [];
+    for (var i = 0, len = obj.length; i < len; i++) {
+      copy[i] = clone(obj[i]);
+    }
+    return copy;
+  }
+
+  // Handle Object
+  if (obj instanceof Object) {
+    copy = {};
+    for (var attr in obj) {
+      if (obj.hasOwnProperty && obj.hasOwnProperty(attr)) {
+        copy[attr] = clone(obj[attr]);
+      }
+    }
+    return copy;
+  }
+
+  throw new Error('Unable to copy obj! Its type isn\'t supported.');
+}