Errata for MSTWJ Book 2

autocompleteSeletor.js

    listElement: function(value) {
      return $("<li>").attr("id", this.determineId("element_" + value))
                      .text(this.universe[value]);
    },

    linkElement: function(value) {
      return $("<a href='#'>").addClass("delete-button")
                              .attr("id", this.determineId("delete_" + value))
                              .text(" Delete");
    },

    valueList: function() {
      var $ul  = $("<ul>").attr("id", this.determineId("list"));
      var that = this;
      $.each(this.initialValue().split(","), function(index, value) {
        var $li = that.listElement(value);
        var $a  = that.linkElement(value);
        $li.append($a);
        $ul.append($li);
      });
      return $ul;
    },

    idLookup: function(itemName) {
      for(id in this.universe) {
        if(this.universe[id] === itemName) {
          return id;
        }
      }
      return null;
    },

    addEventHandler: function(event) {
      var newItemName = $("#" + this.determineId("autocomplete")).val();
      var newItemId   = this.idLookup(newItemName);
      if(!newItemId) {
        return;
      }
      var hiddenField = $("#" + this.determineId());
      hiddenField.val(hiddenField.val() + "," + newItemId);
      var list = $("#" + this.determineId("list"));
      var $li = this.listElement(newItemId);
      var $a  = this.linkElement(newItemId);
      $li.append($a);
      list.append($li);
      var $autocomplete = $("#" + this.determineId("autocomplete"));
      $autocomplete.val("");
      $autocomplete.focus();
      event.preventDefault();
    },
  };

  return Constructor;
}();