JSFiddle - React, Tailwind, and code Playground

by jasper

HTML

<form>
<select multiple="true">
    <option value="1">1</option>
    <option value="2">2</option>
    <option value="3">3</option>
    <option value="4">4</option>
    <option value="5">5</option>
</select>
<input type="submit" />
</form>
<div id="output"></div>

JavaScript

$('form').on('submit', function () {
    var val = encodeURIComponent($(this).find('select').val());
    $('#output').append('<div>key : ' + val + '</div>');
    return false;
});