JSFiddle - React, Tailwind, and code Playground

HTML

<div>js broken</div>

CSS

div{height:50px;width:150px;padding:20px;background:yellow;}

JavaScript

/*
http://stackoverflow.com/questions/29154959/understanding-javascript-object-size-with-jquery-isemptyobject
*/

var tmp;
var objErr = new Object();

objErr['test'] = 'bob';

if ($.isEmptyObject(objErr) ){
    $('div').hide();
}else{    
    tmp = Object.size(objErr);
    $('div').hide(); //if not work, js is broken
}
if (tmp > 1){
    $('div').hide();
    alert(tmp);
}else{
    $('div').hide();
}