Press enter key to submit form

enter_key_to_send.html

<form>
    <textarea></textarea>
    <input type="submit" value="Submit"/>
</form>

<script>
  $("textarea").keyup(function(event){
    if(event.keyCode == 13){
        $("form").submit();
    }
  });
  
  $("form").on('submit', function(e){
      e.preventDefault();
      alert('dadada');
  });
</script>