JS: Create A-Z Filtering of a List

gistfile1

$("#glossary > .term").each(function() {
  $(this).addClass("glossary-" + $(this).children("h3").text().charAt(0));
});

$('#glossary > #no-results').hide();

var resetDirectory = function () {
  $("#glossary > .term").show();
};

(function filterDirectory () {
  
  function setActiveChar(el){
    $("#directory > a").removeClass("active");
    $(el).addClass("active");
  }

  $("#directory > a").on("click", function() {
    if ($(this).hasClass("active")){ return false; }
    $('#glossary > #no-results').hide();
    var href = $(this).attr("href").toString();
    
    if (href === "#all") {
      setActiveChar(this);
      resetDirectory();
    }
    else {
      setActiveChar(this);
      var character = href.slice(1);
      var terms = $("#glossary > .term[class$='" + character + "']").show();
      $("#glossary > .term:not([class$='" + character + "'])").hide();

      if(!terms.length){ $('#glossary > #no-results').show(); }
    }
  });
})();