NSPredicate for inner key in array of dictonary

Question

i have an array of dictionay in the following format

    [
 {
      \"student\": {
        \"id\": \"1\",

        \"studentUserDetail\": {
          \"firstName         


        

Answer 1

NSString *name = @"Bonny";
NSPredicate *pred = [NSPredicate predicateWithFormat:
                    @"student.studentUserDetail.firstName == %@", name];     
NSArray *arr = [self.anArray filteredArrayUsingPredicate:pred];

NSLog(@"Bonny found at : %@", arr);

Edit:

If you want to search based on a pattern, then use:

NSPredicate *pred = [NSPredicate predicateWithFormat:
                    @"student.studentUserDetail.firstName beginswith[cd] %@", name];