Question

I have never used NSPredicate before so please bear with me. I have an array which have a boolean key as “isChecked”. I want to filter the array which have the boolean set as “YES”, any idea how can I do it, plus if there is any reference to such query methods that would be nice to have it handy.

Thanks

Answer 1

//NSArray * myArray is your array 
//containing your objects that each have an isChecked property


NSPredicate *predicate = [NSPredicate predicateWithFormat:@"isChecked == YES"];
NSArray *filteredArray = [myArray filteredArrayUsingPredicate:predicate];

// filteredArray is the new array that only contains your checked items

Cheers