var btn = document.querySelector('#clickMe');

​

var clicks = Rx.Observable.fromEvent(btn, 'click');

​

​

clicks.scan((s) => s + 1, 0)

  .buffer(clicks.throttle(1000))

  .forEach(x => sendValues(x));

​

function sendValues(arr) {

  var pre = document.createElement('pre');

  pre.innerHTML = JSON.stringify(arr);

  document.querySelector('#results')

    .appendChild(pre);

}