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"
};
result = Object.keys(result).sort().reduce(function (a, b) {
    a[b] = result[b];
    return a;
}, {});

$.each(result, function (key, value) {
    $('#country')
        .append($("<option></option>")
        .attr("value", key)
        .text(value));

});