SOURCE

var CLICK_EVENT_KEY = 'click-bounced';
var BOUNCING_DURATION = 1000;
$.event.special[CLICK_EVENT_KEY] = {
  bindType: 'click',
  handle(event){
  	if ($(this).data('clicking')){
    	return
  	}else{
    	$(this).data('clicking', true);
    	event.handleObj.handler.apply(this, arguments);
    	var _this = this;
    setTimeout(function(){
      $(_this).data('clicking', false);
    }, BOUNCING_DURATION)
  }
  }
}

$('button.bounced').on(CLICK_EVENT_KEY, function(){
  let num = Number(document.querySelector('.alert').innerHTML);
  document.querySelector('.alert').innerHTML = ++ num;
});

$('button.not-bounced').on('click', function(){
  let num = Number(document.querySelector('.alert').innerHTML);
  document.querySelector('.alert').innerHTML = ++ num;
});

<div class="container">
  <button class="bounced">1s防抖按钮</button>
<button class="not-bounced">无防抖按钮</button>
<div class="alert">
  1
</div>
</div>

.container{
  max-width: 80%;
  margin: 0 auto;
}