JSFiddle - React, Tailwind, and code Playground

by Trisox

JavaScript

$j("ul.menu > li a").not("ul li ul a").each(function() {
    var el = $j(this);
    $j("<option />", {
        "value"   : el.attr("href"),
        "text"    : el.text()
    }).appendTo(".main_nav_wrap select");
});

$j("ul.sub-menu li a").each(function() {
    var el = $j(this);
    $j("<option />", {
        "value"   : el.attr("href"),
        "text"    : " -- " + el.text()
    }).appendTo(".main_nav_wrap select");
});