Not ideal solution. We have two stream, the clicks and the timer and let's compose them together.

  $(document).ready(function(){
	var $btn = $("#btn"),
		$list = $("#list");
		
		clicks = ASQ.react.of(),
		timer = ASQ.react.of()

	$btn.click(function(evt){
		clicks.push(evt);
	});
	
	setInterval(function(){
	  timer.push();
	},1000)
	
// 	no merge the two streams
var msgs = ASQ.rect.all(clicks, timer);

msgs.val(function(){
  $list.append($("<div>clicked</div>"))
});

});

The problem is that the click events queue will stack up, since nothing is throwing away these click events between 1000msTalks a bit about "hot" and "cold" observables

  $(document).ready(function(){
	var $btn = $("#btn"),
		$list = $("#list"),
		clicks = ASQ.react.of(),
		msgs = ASQ.react.of(),
		latest;

	$btn.click(function(evt){
		// push click event messages into stream
		clicks.push(evt);
	});

	// sample clicks stream
	setInterval(function(){
		if (latest) {
			msgs.push("clicked!");
			latest = null;
		}
	},1000);

	// subscribe to click stream

	clicks.val(function(evt){
	 // separete the concerns (from the click handling)
		latest = evt;
	});

	// subscribe to sampled message stream
	msgs.val(function(msg){
		$list.append($("<div>" + msg + "</div>"));
	});
});