@property ?

Discussion in 'Mac Programming' started by iFaisal, Apr 22, 2011.

  1. iFaisal
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    macrumors newbie

    Apr 17, 2011

    hello everyone ,

    what is the different between set/get function and @property/@synthesize ?

    is it just syntax code or not ? and what does mean ?
  2. gnasher729
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    macrumors G5


    Nov 25, 2005
    The Objective-C 2.0 language manual on Apple's web site will answer all these questions. And playing around with styles like you did is _very_ impolite.
  3. Psilocybin
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    macrumors 6502a


    Jan 16, 2011
    Ontario, Canada
  4. jiminaus
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    macrumors 65816


    Dec 16, 2010
    At first we had to code our own getters and setters. There was no concept of a property in Objective-C 1.0, except by the convention that if a class had a method x and a method setX: then it could have been said to have property x.

    Then Apple created Objective-C 2.0 and it introduced the @property and @synthesise directives, as well as the dot notation. And the number of getters and setters we had to write was reduced to near zero. And our getters and setters become correct in the face of concurrency (assuming no nonatomic) which set us up well for the days of multicore CPUs and GCD.

    And the people programming in the land of Apple were happy. (Well generally, some have some valid objections to dot notation).

    So yeah, it's just syntax. But I'd highly recommend you use it, unless you have strong reasons not to.
  5. iFaisal
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    thread starter macrumors newbie

    Apr 17, 2011
    thank you everyone ... I'm understanding now what is the different . :)

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