platform/video.videojs/dist/video.es.js
function getData(el) {
  var id = el[elIdAttr];

  if (!id) {
    id = el[elIdAttr] = newGUID();
  }

  if (!elData[id]) {
    elData[id] = {};
  }

  return elData[id];
}
function getData(el) {
  var id = el[elIdAttr];

  if (!id) {
    id = el[elIdAttr] = newGUID();
  }

  if (!elData[id]) {
    elData[id] = {};
  }

  return elData[id];
}
Returns the cache object where data for an element is stored

@param {Element} el
Element to store data for.

@return {Object}
The cache object for that el that was passed in.