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toshinarin/NSMutableArray_copy_test.m

Last active August 29, 2015 14:04
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NSMutableArray copy test
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NSMutableArray_copy_test.m
NSMutableArray *mary = [@[ @"a", @"b", @"c" ] mutableCopy];
NSArray *ary = [mary copy];
[mary removeLastObject];
NSString *str1 = [mary componentsJoinedByString:@", "];
NSString *str2 = [ary componentsJoinedByString:@", "];
NSLog(@"{str1: %@}, {str2: %@}", str1, str2); // {str1: a, b}, {str2: a, b, c}
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