JSFiddle - React, Tailwind, and code Playground

HTML

<div id = "SelectedDiv"></div>

CSS

div{
     border-radius:30px;
     background-color:black;
     display:block;
     width:300px;
     height:300px;
   }

JavaScript

(function($){
    $.fn.getStyleObject = function(){
        var dom = this.get(0);
        var style;
        var returns = {};
        if(window.getComputedStyle){
            var camelize = function(a,b){
                return b.toUpperCase();
            }
            style = window.getComputedStyle(dom, null);
            for(var i=0;i<style.length;i++){
                var prop = style[i];
                var camel = prop.replace(/\-([a-z])/g, camelize);
                var val = style.getPropertyValue(prop);
                returns[camel] = val;
            }
            return returns;
        }
        if(dom.currentStyle){
            style = dom.currentStyle;
            for(var prop in style){
                returns[prop] = style[prop];
            }
            return returns;
        }
        return this.css();
    }
})(jQuery);

console.log($('#SelectedDiv').css("borderBottomLeftRadius"));
console.log($('#SelectedDiv').css("borderBottomRightRadius")); 
console.log($('#SelectedDiv').css("borderTopLeftRadius")); 
console.log($('#SelectedDiv').css("borderTopRightRadius"));