CODEWITHSUNDEEP
swiftglobal-variables
sandman
sandman

Reputation: 65

What is best practice for initialization of global variables in Swift?

When declaring global variables, where is the "best practice" place to initialize them in the code?

I have a button that I would like to declare as a constant but in doing so would have to initialize it at the top of the code file, which I've been taught and seen isn't the best option.

I'm having a hard time reconciling putting something like this in a global scope.

let button = UIButton(frame: CGRectMake(0,0,64,49))

One option would be to change it to a var and just reinitialize like this:

var button = UIButton()

Then later in a given function do:

button = UIButton(frame: CGRectMake(0,0,64,49))

but this seems like a waste initializing twice.

Thoughts?

Upvotes: 3

Views: 1829

Answers (1)

Stefan
Stefan

Reputation: 5451

You can declare it as optional:

var button: UIButton?

and initialize it later:

button = UIButton(frame: CGRectMake(0,0,64,49))

Upvotes: 5

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