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iOS Build a Simple iPhone App (iOS7) Creating a Data Collection Creating a @property

Posted by German Espitia
German Espitia
4,578 Points

What is the difference between instance variable and self?

In the interface the predictions property is defined:

@property (strong, nonatomic) NSArray *predictions;

and in the implementation we declare it and use it:

Declaration:

self.predictions = @[@"it is certain",@"it is decidedly so", nil];

Usage:

self.predictionLabel.text = [self.predictions objectAtIndex:0];

My question: What is the difference between using

[self.predictions objectAtIndex:0]

AND

[_predictions objectAtIndex:0]"

2 Answers

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

I answered this question in detail a few days ago in this post. that should help clear things up

German Espitia
German Espitia
4,578 Points
German Espitia
German Espitia
4,578 Points

Question already answered