list-globals.js

objs = new Set
nameToObj = new Map
function t(obj) {
  if (!obj || objs.has(obj) || typeof obj !== 'object') { return }
  if (obj.nodeName === 'IFRAME') { return } // iframe descendants can cause security errors
  objs.add(obj)
  let proto = Object.getPrototypeOf(obj)
  let name = (obj.constructor && obj.constructor.name) || (proto && proto.constructor && proto.constructor.name)
  if (!nameToObj.has(name)) { nameToObj.set(name, []) }
  nameToObj.get(name).push(obj)
  for (let key of Reflect.ownKeys(obj)) {
    try {
      t(obj[key])
    } catch (err) { }
  }
  t(proto)
  if (obj[Symbol.iterator]) {
    for (let item of obj) { t(item) }
  }
}
t(window)
objs = [...objs]
nameToObj = Object.fromEntries(nameToObj)