JSFiddle - React, Tailwind, and code Playground

HTML

<input type="radio" name="post_type" value="new"/> New Post
<input type="radio" name="post_type" value="revision"/> Revision

<div id="title">
    <input type="text" name="title"/>
</div>

<div id="revision">
    <select name="posts">
        <option>Posts Here</option>
    </select>
</div>

JavaScript

$('#revision').hide();
$('#title').hide();

$('input[name="post_type"]').change(function() {
    var isRevision = $('input:checked[name="post_type"]').val() == "revision";
    $('#title').toggle(!isRevision);
    $('#revision').toggle(isRevision);
});