Remove duplicate from nsmutablearray containing nsdictionary

Question

I want to remove duplicates from nsmutablearray.

Array Structure :-

(
    {
        \"act_end_date\" = \"\";
        \"act_entry_date\"          


        

Answer 1

    NSMutableSet *keysSet = [[NSMutableSet alloc] init];
    NSMutableArray *filteredArray = [[NSMutableArray alloc]init];
    for (NSDictionary *msg in germanMakes) {
    NSString *key = [NSString stringWithFormat:@"%@", msg[@"act_id"]];
    if (![keysSet containsObject:key]) {
        [filteredArray addObject:msg];
        [keysSet addObject:key];
    }
    }
    NSLog(@"filteredResults %@ keyset%@",filteredArray , keysSet);

germanMakes is your initial array, keysSet contains unique act_id (e.g. 1,2,3,4..), filteredArray is your array filtered by act_id. Keep in mind this does not get sorted ascending, but that part will be easy.