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They both do the same thing, return the value of an object's property called property. So, what is the difference other than syntax? Same thing also happens with arrays, 

[[numberArray objectAtIndex:indexInt] integerValue]

is the same as 

((NSNumber*)numberArray[indexInt]).integerValue

At least it has been the same so far.

modus
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Ignat
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1 Answers1

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There is absolutely no difference between using the dot notation or the square bracket messaging syntax. - with the caveat that you can send any message to id, but you can't get or set any property of id through dot syntax

Woodstock
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    That's almost true, with the caveat that you can send any message to `id`, but you can't get or set any property of `id` through dot syntax (As the OP's example shows, you have to cast explicitly to use dot syntax.) – ahruss Aug 08 '14 at 21:02