Using NSPredicate to determine if a string equals another string

Question

I have an NSArray of CalEvents returned with the [CalCalendarStore eventPredicateWithStartDate] method. From the events returned, I am trying to ke

Answer 1

Try predicate with format @"self.title like[c] 'on call'". The following sample code outputs 2 strings:

NSArray* ar = [NSArray arrayWithObjects:@"on call", @"I'm on call", @"lala", @"On call", nil];
NSArray* filt = [ar filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:@"self like[c] 'on call'"]];
NSLog([filt description]);

//Output
"on call",
"On call"

Answer 2

Try [NSPredicate predicateWithFormat:@"title ==[c] 'on call'"];

(The [c] makes the equality comparison case-insensitive.)