javascript - Can't get jQuery .off() to remove event handler -


i can't seem figure out why .off('click') jquery method isn't working considering removing event binding '.reveal-menu'. first animation works fine each div moves respective location in increments of 78. can't seem go back.

jquery 

$(function(){    var usermenudivs = $('#user-menu div:gt(1)');   usermenudivs.hide();     $('.reveal-menu').on('click',     function(){       $(this).addclass('down');       iconspacercount = 78;       usermenudivs.show();       $.each(usermenudivs, function(index,value){         $(this).animate({top:iconspacercount},200);         iconspacercount += 78;});     });    $('.reveal-menu').off('click',     function(){       $(this).removeclass('down');       iconspacercount = 0;       $.each(usermenudivs, function(index,value){         $(this).animate({top:iconspacercount});       });     });    });

html 

  <div id="user-menu">     <div class="reveal-menu">     <i class="fa fa-plus fa-lg"></i>     </div>      <div class="post-option">       <a href="#" class="fa fa-pencil fa-2x"></a>     </div>      <div class="search-option">       <a href="#" class="fa fa-search fa-lg"></a>     </div>      <div class="chat-option">       <a href="#" class="fa fa-comments fa-lg"></a>     </div>      <div class="profile-option">       <a href="#" class="fa fa-user fa-lg"></a>     </div>      <div class="friends-option">       <a href="#" class="fa fa-users fa-lg"></a>     </div>      <div class="organizations-option">       <a href="#" class="fa fa-building-o fa-lg"></a>     </div>      <div class="public-figures-option">       <a href="#" class="fa fa-bullhorn fa-lg"></a>     </div>      <div class="sign-out-option">       <a href="#" class="fa fa-sign-out fa-lg"></a>     </div>     </div>

here link video show i'm doing. https://dl.dropboxusercontent.com/u/3270373/2016-06-01_21-57-20.mp4

the .off used remove events. not used add opposite event of .on. can switch click event between 2 function this:

$(function() {    var usermenudivs = $('#user-menu div:gt(1)');    usermenudivs.hide();      $('.reveal-menu').on('click', revealmenuon);  });    function revealmenuon() {    $(this).addclass('down');    $('#user-menu div:gt(1)').slidedown( "slow" );    $('.reveal-menu').off('click').on('click', revealmenuoff);  }    function revealmenuoff() {    $(this).removeclass('down');    $('#user-menu div:gt(1)').slideup( "slow" );    $('.reveal-menu').off('click').on('click', revealmenuon);  }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <div id="user-menu">    <div class="reveal-menu">      <i class="fa fa-plus fa-lg">1</i>    </div>      <div class="post-option">      <a href="#" class="fa fa-pencil fa-2x">2</a>    </div>    <div class="search-option">      <a href="#" class="fa fa-search fa-lg">3</a>    </div>    <div class="chat-option">      <a href="#" class="fa fa-comments fa-lg">4</a>    </div>    <div class="profile-option">      <a href="#" class="fa fa-user fa-lg">5</a>    </div>    <div class="friends-option">      <a href="#" class="fa fa-users fa-lg">6</a>    </div>    <div class="organizations-option">      <a href="#" class="fa fa-building-o fa-lg">7</a>    </div>    <div class="public-figures-option">      <a href="#" class="fa fa-bullhorn fa-lg">8</a>    </div>    <div class="sign-out-option">      <a href="#" class="fa fa-sign-out fa-lg">9</a>    </div>  </div>


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