So siehts ganz gut aus !

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

@@ -0,0 +1,7 @@
+"use strict";
+
+module.exports = function () {
+	var arr = [1, 2, 3, 4, 5, 6];
+	if (typeof arr.fill !== "function") return false;
+	return String(arr.fill(-1, -3)) === "1,2,3,-1,-1,-1";
+};