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iOS Build a Simple iPhone App (iOS7) Creating a Data Collection Implementing an Array

Posted by Anna Zocher
Anna Zocher
4,721 Points

Declaring Array: When to use literals versus alloc + init

In this class, we declare an array using alloc and init. I understand that this puts memory allocation in our control, and the memory will be held for the array until we release it.

Because we are using this array the entire time the app is open, why not use a literal declaration instead:

NSArray *prediction = @[@"prediction1", @"prediction2", etc];

When do you use a literal declaration, versus allocating memory yourself?

Hayden Taylor
Hayden Taylor
5,076 Points
Hayden Taylor
Hayden Taylor
5,076 Points

They want to show you the long way so its more readable for new users.....

When you develop your own stuff you will most likely use literals because they are way better

2 Answers

Rashii Henry
Rashii Henry
16,433 Points
Rashii Henry
Rashii Henry
16,433 Points

you can use either and end up being fine in both scenarios. However, if you want to do everything in one line and avoid typing more lines of code then use your literals. Its really a personal preference but they both have the same outcome.

Kai Aldag
PLUS
Kai Aldag
Courses Plus Student 13,560 Points
Kai Aldag
Kai Aldag
Courses Plus Student 13,560 Points

they both get the job done, personally littorals get it done quicker and it's more readable but they both get the same outcome so it's all about your preference :)