code: function asyncIntersect() {
      return asyncArray(when.apply(null, argsToArray(arguments)).chain(function (result) {
          return intersect.apply(array, normalizeResult(result).map(function (arg) {
              return isArray(arg) ? arg : [arg];
          }));
      }));
  }
docs: Async version of {@link comb.array.intersect}.
  
  ```
  function asyncArr(){
  var ret = new comb.Promise();
  process.nextTick(ret.callback.bind(ret, [1,2,3,4,5]);
  return ret.promise;
  }
  
  comb.async.array(asyncArr()).intersect([3,4], [3]).then(function(intersection){
  console.log(intersection); //[3]
  });
  
  comb.async.intersect(asyncArr(), [3,4]).then(function(intersection){
  console.log(intersection); //[3,4]
  });
  
  ```
  
  @static
  @memberof comb.async
  @name intersect