JSFiddle - React, Tailwind, and code Playground

HTML

<select id="select_one">
    <option value="1">Yes</option>
    <option value="0">No</option>
</select>

<select id="select_yes" style="display:none">
    <option>Yes</option>
    <option>No</option>
</select>

JavaScript

$(document).ready(function () {
        $('#select_one').on('change', function() {
            if ($('#select_one option:selected').val() == 1) {
                $('#select_yes').show();
            } else {
                $('#select_yes').hide();
            }
        })
    });