Online JavaScript Editor

<html> <body> <script> Object.prototype.objCustom = function() {}; Array.prototype.arrCustom = function() {}; var org = ["Apple", "Microsoft", "Tesla"] org.anotherOrg = "solarCity"; for (var i in org) { if (org.hasOwnProperty(i)) { document.write(i); document.write("</br>"); } } </script> </body> </html>