var MutationObserver = window.MutationObserver || window.WebKitMutationObserver || window.MozMutationObserver;

​

var list = document.querySelector('ol');

​

var Observer = new MutationObserver(function(mutations){

  mutations.forEach(function(mutation){

    console.log(mutation);

  });

});

​

Observer.observe(list, {

  childList: true,

  subtree: true

});

​

list.appendChild(document.createElement('div'));

list.appendChild(document.createTextNode('foo'));

list.removeChild(list.childNodes[0]);

list.childNodes[0].appendChild(document.createElement('div'));