So siehts ganz gut aus !

node_modules/es5-ext/string/#/last.js

@@ -0,0 +1,8 @@
+"use strict";
+
+var value = require("../../object/valid-value");
+
+module.exports = function () {
+	var self = String(value(this)), length = self.length;
+	return length ? self[length - 1] : null;
+};