Javascript Universal Module Definition pattern

umd-pattern.js

(function (root, factory) {
    if (typeof define === "function" && define.amd) {
        define(["jquery"], function (jQuery) {
            return (root.myfn = factory(jQuery));
        });
    } else if (typeof module === "object" && module.exports) {
        module.exports = (root.myfn = factory(require("jquery")));
    } else {
        root.myfn = factory(root.jQuery);
    }
}(this, function ($) {
    function myfn() {
        // ...
    }
    
    return myfn;
}));