Alternate throttle function for Bacon.js

gistfile1.js

// var throttled = source.steady(2)
// source:    asdf------qwerzxcv---------
// throttled: --a-s-d-f---q-w-e-r-z-x-c-v

Bacon.EventStream.prototype.steady = function(delay) {
  var bus = new Bacon.Bus();
  var queue = [];
  var timeout = null;

  var emit = function() {
    if (queue.length > 0) {
      bus.push(queue.pop());
      timeout = window.setTimeout(emit, delay);
    } else {
      timeout = null;
    }
  };

  this.onValue(function(value) {
    queue.push(value);
    if (!timeout) timeout = window.setTimeout(emit, delay);
  });

  return bus;
}