List<SomeClass> list = list to search ; List<String> matchingList = list of strings that you want to match against; final matchingSet = HashSet. from(matchingList); list. where((item) => matchingSet.
List<SomeClass> list = list to search ; List<String> matchingList = list of strings that you want to match against; final matchingSet = HashSet. from(matchingList); list. where((item) => matchingSet.