javascript - How can I remove the append h2 tag after open class comes. I am trying, but not work - 


<ul class="nav" id="yui_3_17_2_3_1433409929526_470">     <li class="dropdown open" id="yui_3_17_2_3_1433409929526_469">         <a href="http://192.168.1.112/mth_old_31/moodle28/message/index.php?viewing=recentconversations" class="dropdown-toggle" data-toggle="dropdown" title="unread messages (5)" id="yui_3_17_2_3_1433409929526_473">             <span id="yui_3_17_2_3_1433409929526_472">5</span>             <i class="fa fa-envelope"></i>         </a>         <ul class="dropdown-menu">             <li class="open"><a title="admin user will..." href="http://192.168.1.112/mth_old_31/moodle28/message/index.php?user1=2&amp;user2=4">                 <div class="message unread">                         <span class="msg-picture">                         <img src="http://192.168.1.112/mth_old_31/moodle28/theme/image.php?theme=elfin28&amp;component=core&amp;image=u%2ff1" alt="picture of student user" title="picture of student user" class="userpicture defaultuserpic" width="60" height="60">                     </span>                     <span class="msg-body">                         <span class="msg-time">                             <i class="fa fa-comments"></i>                                                             </span>                         <span class="msg-sender">student</span>                         <span class="msg-text">admin user will...</span>                     </span>                 </div>             </a>         </li>     </ul>     <h2 id="myid" class="box-messages">massage</h2> </li> <div class="block_action" id="yui_3_17_2_3_1432698699754_495">     <input type="image" class="moveto customcommand requiresjs" alt="move dock" title="dock block" src="http://192.168.1.112/mth_old_31/moodle28/theme/elfin28/pix/arrow.png" id="yui_3_17_2_3_1432698699754_494"> </div> </ul>  <script>     $("#box1 ul.nav li.dropdown").append('<h2 id="myid" class="box-messages">massage</h2>');      $( "#box1 ul.nav li.dropdown.open span" ).click(function() { $( "h2#myid" ).remove();}); </script>

i trying not working. working plz help

you need use event delegation selector has evaluated later

$("#box1 ul.nav").on('click', 'li.dropdown.open span', function () {     $("#myid").remove(); });

in case when using $( "#box1 ul.nav li.dropdown.open span" ) li don't have open class click handler not registered.


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