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Difference between retain & assign

By Sachin Bhardwaj Blogs | iOS Feb 15, 2013
In this blog I will explain basic difference between retain & assign.

Assign creates a reference from one object to another without increasing the source's retain count.

if (_variable != object)

{    

 [_variable release];   

  _variable = nil;  

  _variable = object; 

 }

Retain creates a reference from one object to another and increases the retain count of the source object.

if (_variable != object)

{     [_variable release]; 

    _variable = nil;   

  _variable = [object retain];  

}

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