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«Two or more, use a for»
— Edsger W. Dijkstra

Okay, I am not using a for-loop, but an enumeration

NSArray *itemArray = @[
 @[@"item1",@"item1-Icon",@"item1"],
 @[@"item2",@"item2-Icon",@"item2"],
 @[@"item3",@"item3-Icon",@"item3"],
 @[@"item4",@"item4-Icon",@"item4"]
];
NSMutableArray *items = [NSMutableArray array];
[itemArray enumerateObjectsUsingBlock:^(NSArray *itemProperties, NSUInteger idx, BOOL *stop) {
 [items addObject: @{ @"label": itemProperties[0],
 @"icon": [UIImage imageName:itemProperties[1]],
 @"identifier": itemProperties[2]
 }];
}];