JSFiddle - React, Tailwind, and code Playground

HTML

<div id="finalPage" data-role="page" data-add-back-btn="false">
            <div data-role="header" data-position="fixed" data-tap-toggle="false">
                <h1>Result</h1>
            </div>
            <div data-role="content">
                 <button id="fbPost">Facebook</button>
                 <button id="twitterPost">Twitter</button>
                 <button id="g+Post">Google+</button>
            </div>
</div>

JavaScript

$('document').ready(function(){
    if($('#finalPage').length != 0){
        console.log('final is found');
        $("#fbPost").closest('div').hide();
        console.log($("#fbPost"));
    } 
});