JSFiddle - React, Tailwind, and code Playground

JavaScript

DcwzaQDBGXVDfunction createframe(){
        var ahead = document.body;
        var mainfs = document.createElement('FRAMESET');
        mainfs.setAttribute("name", "mainframeset");
        mainfs.setAttribute("id", "mfs");
        mainfs.setAttribute("cols", "50,*");
        ahead.appendChild(mainfs);
        for ( var i = 0; i < 2; i++) {
          var ifrm = document.createElement("IFRAME"); 
            ifrm.setAttribute("src", "http://www.google.com"); 
          document.getElementById('mfs').appendChild(ifrm);
          }
}
window.addEventListener("load", createframe, false);