Lodash mixin to find similar property values in an array of objects

intersectionObj.js

/**
 * intersectionObj
 *   Pass an array of objects to find the similar objects
 *   You may also pass a single prop as a string, or an array of props to ignore
 *   Returns an array of the items which intersected
 *
 *   Usage example:
 *     var arr = [ { id:1, b:2, c:3 }, { id:2, b:3, c:4 }, { id:3, b:2, c:3 } ];
 *     _.intersectionObj(arr, 'id');
 *   » [ { id:1, b:2, c:3 }, { id:3, b:2, c:3 } ]
 *
 *     _.intersectionObj(arr, [ 'id', 'b' ]);
 *   » [ { id:1, b:2, c:3 }, { id:3, b:2, c:3 } ]
 */

/*global _*/ 'use strict';


var intersectionObj = function intersectionObj(array, props) {
  var arraySansFirstItem = Array.prototype.slice.call(arguments, 1);
  return _.filter(_.uniq(array), function (item) {
    return _.every(arraySansFirstItem, function (other) {
      return _.some(other, function (element) {
        var a = props ? _.omit(_.clone(element), props) : element;
        var b = props ? _.omit(_.clone(item), props) : item;
        return _.isEqual(a, b);
      });
    });
  });
};

_.mixin({ intersectionObj:intersectionObj });