So siehts ganz gut aus !

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

@@ -0,0 +1,15 @@
+"use strict";
+
+module.exports = function () {
+	var arr = [1, "foo"], iterator, result;
+	if (typeof arr.entries !== "function") return false;
+	iterator = arr.entries();
+	if (!iterator) return false;
+	if (typeof iterator.next !== "function") return false;
+	result = iterator.next();
+	if (!result || !result.value) return false;
+	if (result.value[0] !== 0) return false;
+	if (result.value[1] !== 1) return false;
+	if (result.done !== false) return false;
+	return true;
+};