ambari/ambari-web/app/utils/jquery.unique.js

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

(function($){

  var _old = $.unique;

  $.unique = function(arr){

    // do the default behavior only if we got an array of elements
    if (!!arr[0].nodeType){
      return _old.apply(this,arguments);
    } else {
      // reduce the array to contain no dupes via grep/inArray
      return $.grep(arr,function(v,k){
        return $.inArray(v,arr) === k;
      });
    }
  };
})(jQuery);