1 files changed, 23 insertions, 0 deletions
diff --git a/node_modules/es5-ext/object/is-copy.js b/node_modules/es5-ext/object/is-copy.js
new file mode 100644
index 000000000..8c6ae5e2c
--- /dev/null
+++ b/node_modules/es5-ext/object/is-copy.js
@@ -0,0 +1,23 @@
+"use strict";
+
+var eq                      = require("./eq")
+  , value                   = require("./valid-value")
+  , keys                    = Object.keys
+  , objPropertyIsEnumerable = Object.prototype.propertyIsEnumerable;
+
+module.exports = function (val1, val2) {
+	var k1, k2;
+
+	if (eq(value(val1), value(val2))) return true;
+
+	val1 = Object(val1);
+	val2 = Object(val2);
+
+	k1 = keys(val1);
+	k2 = keys(val2);
+	if (k1.length !== k2.length) return false;
+	return k1.every(function (key) {
+		if (!objPropertyIsEnumerable.call(val2, key)) return false;
+		return eq(val1[key], val2[key]);
+	});
+};