'use strict'; function addRootElement(rootElem) { document.body.insertBefore( rootElem, document.body.lastElementChild.nextElementSibling ); } function getSelection(_u) { return window.getSelection(); } function stringify(j, indent) { return JSON.stringify(j, null, indent); } function postMessage(obj, msg, src) { obj.contentWindow.postMessage(msg, src); } function setCookie(c) { document.cookie = c; } exports._addRootElement = addRootElement; exports._getSelection = getSelection; exports._stringify = stringify; exports._postMessage = postMessage; exports._setCookie = setCookie; exports._keyCode = function(e) { // https://www.w3schools.com/jsref/event_key_keycode.asp return e.which || e.keyCode; }