JSFiddle - React, Tailwind, and code Playground

HTML

<select name="country" id="country"></select>

JavaScript

var result = {
    ROM: "Romania",
    YUG: "Yugoslavia",
    PRT: "Portugal",
    MKD: "Macedonia",
    GRC: "Greece",
    FRA: "France",
    ISL: "Iceland",
    LUX: "Luxembourg",
    HUN: "Hungary",
    GBR: "United Kingdom"
};

var options = $.map(result, function (key, value) {
    return new Option(key, value);
}).sort(function (a, b) {
    return a.text.localeCompare(b.text);
});

$('#country').append(options);