is-natural-number.js
302 Bytes
"use strict";
module.exports = function (t, a) {
a(t(undefined), false, "Undefined");
a(t(null), true, "Null");
a(t(2), true, "Number");
a(t(-2), false, "Negative");
a(t(2.34), false, "Float");
a(t("23"), true, "Numeric string");
a(t(NaN), false, "NaN");
a(t(Infinity), false, "Infinity");
};