JSFiddle - React, Tailwind, and code Playground

HTML

<label for="color">Color:</label>
<select id="color" name="color">
    <option value="g">Green</option>
</select>

JavaScript

$(function () {
    function addOption(oVal, oText) {
        var $select = $("#color");
        if ($select.val(oVal).val() != oVal) {
            var $option = $("<option>").val(oVal).text(oText);
            $select.append($option).val(oVal);
        }
    }

    addOption('r', 'Red');
    addOption('g', 'Green');
    addOption('b', 'Blue');
});