Izmjenjena struktura, dodan backand

web/node_modules/es6-iterator/test/valid-iterable.js

@@ -0,0 +1,18 @@
+'use strict';
+
+var iteratorSymbol = require('es6-symbol').iterator
+  , Iterator       = require('../');
+
+module.exports = function (t, a) {
+	var obj;
+	a.throws(function () { t(); }, TypeError, "Undefined");
+	a.throws(function () { t({}); }, TypeError, "Plain object");
+	a.throws(function () { t({ length: 0 }); }, TypeError, "Array-like");
+	obj = {};
+	obj[iteratorSymbol] = function () { return new Iterator([]); };
+	a(t(obj), obj, "Iterator");
+	obj = [];
+	a(t(obj), obj, 'Array');
+	obj = (function () { return arguments; }());
+	a(t(obj), obj, "Arguments");
+};