So siehts ganz gut aus !

node_modules/es5-ext/test/number/is-number.js

@@ -0,0 +1,13 @@
+"use strict";
+
+module.exports = function (t, a) {
+	a(t(0), true, "Zero");
+	a(t(NaN), true, "NaN");
+	a(t(Infinity), true, "Infinity");
+	a(t(12), true, "Number");
+	a(t(false), false, "Boolean");
+	a(t(new Date()), false, "Date");
+	a(t(new Number(2)), true, "Number object");
+	a(t("asdfaf"), false, "String");
+	a(t(""), false, "Empty String");
+};