JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8">
        <title></title>
        
     </head>
    <body>
            <div id="window-properties"></div>
    </body>
</html>

JavaScript

var prop_w,prop_W,count_w =0,count_W=0;
for (prop_w in window) {
count_w += 1
}


document.getElementById("window-properties").innerHTML  = count_w