javascript event stoppropagation

event.stopPropagation();

$("span").click(function(event){
  event.stopPropagation();
  alert("The span element was clicked.");
});
$("p").click(function(event){
  alert("The p element was clicked.");
});
$("div").click(function(){
  alert("The div element was clicked.");
});

<div onclick="alert('never triggered');">
  <div onclick="event.stopPropagation(); alert('ok!');"></div>
</div>