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iOS Object-Oriented Objective-C Memory, Arrays and Loops, Oh My! NSArrays and NSMutableArrays in Practice

Amir Bahadori
Amir Bahadori
5,498 Points
Posted by Amir Bahadori
Amir Bahadori
5,498 Points

Use of undeclared identifier 'quizScore' error

When I am going to change my quizScores to int values by [quizScore intValue], I get an error of undeclared identifier 'quizScore'. I don't get it because I declared the temporary variable quizScore in my loop. Thanks

// Quiz Scores: 100, 94, 83, 77, 72

NSArray *quizArray = @[@100, @94, @83, @77, @72];  

float scoreTotal = 0;   

for (NSNumber *quizScore in quizArray); {  

    scoreTotal = scoreTotal + [quizScore intValue];
}
    float average = scoreTotal / [quizArray count];

    return 0;

1 Answer

Amir Bahadori
Amir Bahadori
5,498 Points
Amir Bahadori
Amir Bahadori
5,498 Points

Never mind I found my answer, the error is because of a semicolon after my for-in loop condition parentheses

for (NSNumber *quizScore in quizArray); {

}