javascript display id of clicked element code example

Example 1: how to get the id of button clicked in jquery

$("button").click(function() {
    alert(this.id); // or alert($(this).attr('id'));
});

Example 2: get id of clicked element javascript

<button id="3" onClick="reply_click(this.id)">B3</button>
    
<script type="text/javascript">
  function reply_click(clicked_id)
  {
      alert(clicked_id);
  }
</script>