MutationObserver of Google Docs

MutationObserverGoogleDocs.js

var editor = document.querySelector('.kix-appview-editor');

var observer = new MutationObserver(function (mutations) {
    mutations.forEach(function (mutation) {
      var entry = {
      	mutation: mutation,
      	el: mutation.target,
      	value: mutation.target.textContent,
      	oldValue: mutation.oldValue
      };
      console.log('Recording Mutation:', entry);
  });
});

var options = {
	subtree: true,
	childList: true,
	attributes: false
};

observer.observe(editor, options);