npm and error messages

node_modules/es5-ext/array/#/values/is-implemented.js

@@ -0,0 +1,14 @@
+"use strict";
+
+module.exports = function () {
+	var arr = ["foo", 1], iterator, result;
+	if (typeof arr.values !== "function") return false;
+	iterator = arr.values();
+	if (!iterator) return false;
+	if (typeof iterator.next !== "function") return false;
+	result = iterator.next();
+	if (!result) return false;
+	if (result.value !== "foo") return false;
+	if (result.done !== false) return false;
+	return true;
+};