Question

I have a json response coming and i need to get all the values whose keys are a particular string… for e.g : www_name, www_age etc are coming in the nsmutabledictionary as keys now i want to search all those values having “www_” as their part of the string.

Answer 1

Loop over the dictionary and filter.

NSMutableArray* result = [NSMutableArray array];
for (NSString* key in dictionary) {
  if ([key hasPrefix:@"www_"]) {
    [result addObject:[dictionary objectForKey:key]];
    // write to a dictionary instead of an array
    // if you want to keep the keys too.
  }
}
return result;