JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://raw.github.com/miketaylr/jQuery-html5-placeholder/master/html5placeholder.jquery.min.js"></script>
<!doctype>
<html>
    <head>
        <title>test</title>
    </head>
    <body>
        <input type="text" placeholder="blah"/>
        
        <input type="text" placeholder="blah blah"/>
    </body>

</html>

JavaScript

$(document).ready(function(){
        
    var test = $('<input disabled/>');
    $(document.body).append(test);
    try{
        test.focus();
    }catch(e){
        test.blur();
    }
    //clean up test element
    test.remove();
    
   $('input[placeholder]').placeholder();
});