Question

I have an NSMutableArray(contactsArray) with contents as below.

{({ContactID = ""; RecordID = 45; Number = "";},
{ContactID = 134;RecordID = 47;Number = PNAPYOEMZH;})}

I have an independent variable say x. I need to check whether x is equal to the ContactID in the array

Answer 1

You could do something like this:

NSMutableArray *contactsArray = <the_array>;
int x = <the_value_to_check_against>;

[contactsArray filterUsingPredicate:[NSPredicate predicateWithBlock:^BOOL(id obj, NSDictionary *bindings){
    return ([[obj objectForKey:@"ContactID"] intValue] == x);
}]];

or change the predicate to:

[contactsArray filterUsingPredicate:[NSPredicate predicateWithFormat:@"self.ContactID == %@", [NSNumber numberWithInt:x]]];