storing data locally on the iphone

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For simple data you should use NSUserDefaults. CoreData is very cool but mainly to store DB structures, and introduces complexity (but i love it:)). If you just need to store String, Array and so on (basically prefs), you can go with NSUserDefaults:

For example:

NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];  //load NSUserDefaults
NSArray *fakeFavs = [[ NSArray alloc] initWithObjects:@"2",@"4", @"100", nil];  //declare array to be stored in NSUserDefaults
[prefs setObject:fakeFavs forKey:@"favourites"];  //set the prev Array for key value "favourites"

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