JSFiddle - React, Tailwind, and code Playground

HTML

<form>
    <select name="codeApprentice">
        <option value="Cat">Cat</option>
        <option value="Dog">Dog</option>
    </select>
    <input value="Run it" type="submit" />
</form>
<div></div>

JavaScript

// my_class.js
var MyClass = function () {};

MyClass.Cat = function () {
    return "kitten";
};

MyClass.Dog = function () {
    return "puppy";
};

$(function () {
    $("form").submit(function () {
        var codeApprentice = $("select[name=codeApprentice]").val();
        var value = MyClass[codeApprentice].call(null);
        $("div").append(value);
        return false;
    });
});