html - Jquery - Change Glyphicon on click -

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i have collapsing div , cannot seem make glyphicon change existing jquery have.

i want change glyphicon-plus glyphicon-minus not seem work me.

$(function(){      $('a.togglebtn').click(function(){          if($("#toggleglyph").length !== 0)              $(".glyphicon").removeclass("glyphicon-minus").addclass("glyphicon-plus");          else if ($("#toggleglyph").length !== 0)              $(".glyphicon").removeclass("glyphicon-plus").addclass("glyphicon-minus");      });  });    $(function(){  $('a.togglebtn').click(function(){          if($("#toggletext").text()==="learn more"){              $("#toggletext").html("hide");}          else {$("#toggletext").html("learn more");}          $('#mycontent').stop().slidetoggle(500);          return false;      });    });
#mycontent { display:none;}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <div>  <a class="lead p-color learn-button togglebtn">    <small>      <span class="glyphicon glyphicon-plus">        </span>&nbsp;<span id="toggletext">learn more</span>    </small>  </a>  </div>    <div id="mycontent" class="row row-offset" style="margin: 0 30px">    <div class="col-xs-6 col-md-4">      <div class="lead caption text-center">        <h3 class="h-color">profile</h3>      </div>      <div class="thumbnail">        <img style="height: 100px; width: auto;" class="img-circle" src="images/logo-bunny.png" alt="thumbnail">      </div>      <div class="lead caption">        <p class="p-color"><small>some sample text. sample text.</small></p>      </div>    </div>  </div>

i use jquery.toggleclass function , add 2 classes toggling between.

would this...

$(function () {     $('a.togglebtn').click(function () {         $(".glyphicon").toggleclass("glyphicon-minus glyphicon-plus");         $('#toggletext').text($('#toggletext').text() === "learn more" ? "hide" : "learn more");         $('#mycontent').stop().slidetoggle(500);         return false;     }); });

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