How to filter an Arraycollection by "array of values" rather than a single value (simple comparision) , the below code snippet is for filtering by single value now I went into scenario like filter out only price [10,4,1,8] (some random values from the master collection). Is there any better way to do the second code snippet

Filter function simple comparision

            private function filterForTestData(item:Object):Boolean{
                   if(item.price < slider.value) return true;
                   else return false;      
            }

Filter by array of values

            private function filterForTestData(item:Object,filterBy:Array= [10,4,1,8]):Boolean{
                 for(randomprice in filterBy)
                 return item.price == randomprice;
}
[Edited]

Apply Filter

testData.filterFunction = filterForTestData;